...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7308922 | Key locator A key locator includes first and second members. The first member has opposed ends and an intermediate u-shaped region. One of the ends of the first member comprises a hook for engaging the second member which includes a clasp while the other end comprises an enlarg... | 12/18/2007 |
| 7290364 | Non-rectangular shaped credit card with case A non-rectangular or asymmetrically shaped credit card or phone card with an associated case or holder. The card has a configuration that complements the configuration of the case so that the card is easily removed from the holder for access, yet is maintained insid... | 11/06/2007 |
| 7275727 | Hanger for Christmas ornaments and other objects A hanger is formed as an open loop of an elastomeric material. The open loop includes an integral eyelet formed at one end and an integral latch formed at the opposite end. The latch is inserted through an orifice defined by the eyelet and is held in place by an int... | 10/02/2007 |
| 7213306 | Pull tab apparatus for slide fastener A pull tab apparatus may be easily connected to and disconnected from a slide fastener by a user. The pull tab apparatus includes a coil having a first end and a second end. The coil includes a first section and a second section. At least one of the first and second... | 05/08/2007 |
| 7204366 | Credit card case with quick-release latch A credit card case or fob with an integrated quick-release latch is provided that may be unclipped readily from a key loop, key chain or other device. The quick-release credit card case includes upper and lower cover portions and a pivot member for connecting the up... | 04/17/2007 |
| 7093468 | Key ring This present invention is related to a key ring for keeping a key. The key ring includes a ring body, which has cut planes at both ends thereof. A concave portion (30) is formed at a predetermined place of the key ring (10) and is curved in a direction... | 08/22/2006 |
| 7047776 | Attachment device The present invention relates to an attachment device for keys which includes a key holding body by which the head and shaft of a key can be secured and a joining mechanism configured to join with the joining mechanism on like attachment devices. The present inventi... | 05/23/2006 |
| 7021852 | Article holder An open ring-like device for holding articles such as plastic cards and keys is formed so that its ends are opposed to one another and includes tips at the ends. The distance between the tips is less than the thickness of an article. Articles can be inserted into th... | 04/04/2006 |
| 6973812 | Attachment device for keys and other items An attachment device for attaching, e.g., a key ring is disclosed wherein the device facilitates the reversible attachment of various connecting means, such a device having a shoulder connected to a post and such post having at least one aperture running therethroug... | 12/13/2005 |
| 6928845 | Key cap A universal key cap for receiving the head of a key, where the key includes a key head portion with edged segments and an extending shank portion, including a pair of spaced-apart planar walls in close proximity to each other for developing a tight frictional fit ag... | 08/16/2005 |
| 6748629 | Retaining arrangement for key holders A retaining arrangement retains a key holder of a type having a tag suspended from a ring with the ring also holding at least one key. The retaining arrangement includes a panel. A plurality of slots is defined by the panel. Each slot is shaped and dimensioned to re... | 06/15/2004 |
| 6092405 | Keyring tool The present invention relates to a keyring tool 1 suitable for storage on an expandable coil-type keyring 2 and disconnection therefrom which is used in connecting and disconnecting keys to and from the keyring 2. The keyring tool 1 comprises a bow portio... | 07/25/2000 |
| 6089060 | Key identification system An identification system utilizes a plastic housing which is appropriately sized to hold either a key or a coin as well as an information sheet on which the user may place selected indicia referring to the key or to himself. Each embodiment utilizes a liv... | 07/18/2000 |
| 6082160 | Anti-key insertion device A reminder device attachable to a key ring and engageable with a key shaft to prevent the utilization of the key and thus remind the user of a task to be performed. The device is designed from a single piece of clear flexible plastic, which can be repeate... | 07/04/2000 |
| 5996191 | Hookless connecting ring A hookless connecting ring. An elongate member having two ends is formed in a loop defining axial and circumferential directions. The loop, in the absence of any applied forces, forms a closed configuration of the connecting ring in which the loop is in s... | 12/07/1999 |
| 5915946 | Split ring for fishing The present invention discloses a split ring for fishing having two ring portions arranged vertically and made by bending a hard wire having appropriate elasticity into the form of a figure eight, wherein both ends of the wire are overlapped with each oth... | 06/29/1999 |
| 5899501 | Key holding system A key holding system including a binder. A pair of retention brackets are each secured on opposing cover members of the binder. The brackets are longitudinally disposed inwardly of free edges of the cover members. Each bracket defines a plurality of holdi... | 05/04/1999 |
| 5794993 | Tamper-evident ring A tamper-evident ring is made from a split ring made of a strong resilient material and terminated by male and female fittings. The two fittings can be connected to form a continuous ring of the type that allows keys to slide entirely around the ring. One... | 08/18/1998 |
| 5722277 | Key ring opener and method of use A key ring opener for spreading apart the adjacent end and intermediate portions of a split key ring that are spring-urged against each but are spreadable to allow a key to be placed on or taken off the ring. The opener includes an annular band having sha... | 03/03/1998 |
| 5638713 | Universal backup handcuff key A round and flat molded device not readily identifiable as a handcuff key, which can be hidden under a wrist watch or behind a standard shirt button of a law enforcement officer or security person and which can be silently retrieved and utilized by bendin... | 06/17/1997 |
| 5619875 | Flexible ring device A flexible ring device, such as a key ring for example, is formed of a section of flexible material, such as metal cable or plastic anchored at one end to a coupling sleeve. The free end of the flexible section carries a coupling plug which can be inserte... | 04/15/1997 |
| 5577403 | Key identification system An identification system utilizes a plastic housing which is appropriately sized to hold either a key or a coin as well as an information sheet on which the user may place selected indicia referring to the key or to himself. Each embodiment utilizes a liv... | 11/26/1996 |
| 5501090 | Flexible housing for conventional keys or for keys of a special kind Housing (1, 20) for lodging conventional flat keys or keys of a special kind (2, 2a, 2b'-2b", 2c, 2d), in a safe but removable way. The laminar housing (1, 20) is realized by elastically flexible plastic material s of a type and form like a rectangular "c... | 03/26/1996 |
| 5465596 | Key ring A key ring 10 formed from a continuous piece of pliant spring wire 10 in a first unstressed configuration which comprises a large outer loop 14 having a free end portion 18 adapted to receive keys thereon. The unstressed configuration of the wire includes... | 11/14/1995 |
| 5440910 | Key adaptor A key adaptor includes a substantially rigid body member having structure for pivotable connection to a bow portion of a key so that the key is pivotable between a closed position, wherein the key is substantially aligned with the body member, and an open... | 08/15/1995 |
| 5373717 | Key ring splitter The present invention is a key ring splitter for separating an end of a conventional key ring so as to locate keys thereon or also remove keys. The present invention utilizes a pulling motion to separate the key ring instead of a pushing motion and also i... | 12/20/1994 |
| 5367896 | Key holder A key holder is provided comprising a ring shaped element formed from a resilient coil of material wherein at least one end of the coil used to form the key holder extends into the area defined by the ring so as to form a push bar on to which a key or oth... | 11/29/1994 |
| 5311758 | Key storage tag A key storage tag facilitates storage of a key blank. The key storage tag includes a tag main body, a key to tag interface, a junction body and a hinge. The hinge enables the tag main body to be deflected between a key blank storage configuration where th... | 05/17/1994 |
| 5291768 | Plastic key tag with a key bar A marker plate receptacle, formed by two plates pivotably connected with each other via a film hinge, in which a marker plate is received. A tongue is formed in one piece on the lower end of one of the two plates. It has a hook which can be put over a wal... | 03/08/1994 |
| 5139144 | Socket wrench storage device A storage device for storage of socket wrenches thereon in end-to-end relation. The device is made of springy material and includes a body having extending arm portions with mutually engageable locking surfaces on the distal ends thereof. The locking acti... | 08/18/1992 |
| 5038590 | Key identification cover The present invention comprises a key identification cover having universal adaptability to all manner of conventional keys. More specifically, the key cover of the present invention includes two substantially planar panels linked at their periphery by a ... | 08/13/1991 |
| 5024078 | Magnetic key chain A magnetic key chain which comprises a plastic material in which particles are embedded so that it will adhere to a metal surface such as iron or steel and which in at least one embodiment has a covering sheet on one side and which carries a key ring to w... | 06/18/1991 |
| 5022247 | Holder for spare set of keys A key holder arrangement for one or a plurality of spare keys, with which advertising may be effectively used, comprising a planar base member approximately the size of a typical business card, and of a thickness approximating the thickness of a key. The ... | 06/11/1991 |
| 4976124 | Wire key holder A key holder and a method of holding keys is provided wherein the key holder is formed of a single continuous length of multiply-bent wire to define a plurality of legs. The legs form a rectangle/square with an arcuate portion there-behind. Keys are slid ... | 12/11/1990 |
| 4944171 | Temporary support structure, particularly for emergency keys The structure is constituted by at least one planar base having one or more seats for the key and one or more means for temporary hooking to grip elements provided at least on the head of the key. Advantageously, the head of the key furthermore has means ... | 07/31/1990 |
| 4941335 | Combination key and key holder A plastic combination key and key holder wherein the key holder is a card-shaped plastic body having at least one key-shaped recess or opening therein with a portion thereof not extending entirely through the holder and having a projecting bulbous head sn... | 07/17/1990 |
| 4901547 | Spare car key and plate holder A spare car key comprising a metal core defined by a grip portion and by an active portion designed to cooperate with a respective lock, and housed in removable manner in the center portion of a plate to which it is secured by means of a flexible appendix... | 02/20/1990 |
| 4901549 | Key retainer A key retainer, primarily having the facility for manually manipulating a key from a stored, inoperative position to a partially stored operation position, is disclosed. The key retainer includes a top planar semi-flexible member and bottom planar semi-fl... | 02/20/1990 |
| 4790161 | Keyring accessory A keyring accessory comprises a one-piece plastic structure having a body, one end of which has a loop for attachment to a keyring, the other end having a wedge for spreading apart the elements of the keyring to permit a key to be inserted between the rin... | 12/13/1988 |
| 4785645 | Key retainer A key retainer, primarily having the facility for manually manipulating a key from a stored, inoperative position to a partially stored operation position, is disclosed. The key retainer includes a top planar semi-flexible member and bottom planar semi-fl... | 11/22/1988 |