Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7070351 | Writing instrument with gripping device A gripping element, particularly to writing instruments having a gripping element, which more specifically relates to a marker having a gripping element over a central region thereof. Such positioning of the gripping element facilitates use of the writing instrument... | 07/04/2006 |
| 6951375 | Large area marking device and method for printing A method and apparatus for printing an image on a large surface area or walkway provides for imagewise marking of the surface with a color marking solution, to form a visible image on the surface during an image recording mode of a marking engine. The marking engine... | 10/04/2005 |
| 6893178 | Offset pen structure The present invention relates to an offset pen comprising a holding portion, a writing portion, and an intermediate portion, in which said holding portion is provided for a user to operate by hand, said writing portion is provided with a pen tip for writing, in whic... | 05/17/2005 |
| 6767150 | Automatic pencil assembly An automatic pencil assembly includes a barrel, a point, an urging member, two clamping members, a slide, a guide pipe, a lead, a cap, and a push member. Thus, the lead is pressed downward by the first plug or second plug of the push member to overcome the holding f... | 07/27/2004 |
| 6599047 | Pen A pen includes a reservoir tube holding a reservoir tube and a writing tip at one end for writing, a barrel fastened to one end of the reservoir tube remote from the writing tip by a connector to hold a barrel, a top cap capped on the barrel and adapted t... | 07/29/2003 |
| 6334728 | Double-chuck mechanical pencil A double-chuck mechanical pencil includes a barrel having an open front end part, an inner tube inserted in the barrel, a front chuck having a first chucking head and supported on a front end part of the inner tube with a front end part of the first chuck... | 01/01/2002 |
| 6276854 | Apparatus for holding a writing utensil A writing utensil holder protects the body of a writing utensil and allows the operator to use and store the writing utensil until it becomes too short to otherwise be effectively used or stored by the operator. It is preferred that the writing utensil ho... | 08/21/2001 |
| 6247863 | Press type mechanical pencil A press type mechanical pencil includes an upper barrel, a press device, a refill tube, an abutting rod, a clamp/release device and a lower barrel. An insert post of the clamp/release device has a top portion connected to the abutting rod which is central... | 06/19/2001 |
| 6241410 | Chalk holding device A chalk holding device (10) for use with sidewalk chalk and the like. The inventive device includes an elongate tube (20) having an attachment grip (26) for holding a piece of sidewalk chalk at the lower end of the tube. The upper end of said tube has a r... | 06/05/2001 |
| 6161976 | Automatic writing apparatus for segmental writing elements with caps An automatic writing apparatus includes a plurality of writing elements axially positioned one by one, each of which has a tip portion at the front end and an element cap having a hole for receiving therein the tip portion of an adjacent one of the writin... | 12/19/2000 |
| 6096296 | Method and apparatus for a wide stick crystalline deodorant A shaped crystalline deodorant is made from mixture of a mineral salt and water which is heated above the melting point of the salt, placed in a mold having the desired shape, and crystalized after insertion of an internally threaded member into the mixtu... | 08/01/2000 |
| 5873668 | Writing instrument attachment A new writing instrument attachment for attaching to a common writing instrument. The inventive device includes a case having opposite first and second ends, The first end of the case has a first bore therein and the second end of the case has a second bo... | 02/23/1999 |
| 5720643 | Lead dispensing storage container A lead dispensing storage container that can be opened or closed by a single hand. The container body has a lead case formed therein, and a lead outlet allowing release of leads one by one. A gate member mounted in the container body can be moved to open ... | 02/24/1998 |
| 5480249 | Lead dispensing storage container A lead dispensing storage container that can be opened or closed by a single hand. The container body has a lead case formed therein, and a lead outlet allowing release of leads one by one. A gate member mounted in the container body can be moved to open ... | 01/02/1996 |
| 5433782 | Envelope and stamp moisturizer A new and improved moistening apparatus is used with a squeezable bottle and includes a moisture dispensing assembly connected by a friction fit to the mouth portion of the bottle. The moisture dispensing assembly includes a stopper assembly, a moisture d... | 07/18/1995 |
| 5299878 | Binder for reservoir tubes This invention relates to a binder for reservoir tubes and in particular to one including a conical head formed with a longitudinal through hole at the center and a plurality of longitudinal blind holes around the longitudinal through hole at the center, ... | 04/05/1994 |
| 4998837 | Lead cartridge with an openable capping structure A lead cartridge for a mechanical pencil, provided with an openable capping structure. The openable capping structure is fixedly joined to the open end, namely, the front end, of the lead cartridge so as to engage the lead guide of the mechanical pencil w... | 03/12/1991 |
| 4990012 | Writing instrument with displaceable safety separator In writing instruments having an ink or India ink reservoir, the reservoir should remain sealed prior to first use of the instrument. For this reason, the writing tip and the shaft containing the reservoir are delivered to the user separately. When the in... | 02/05/1991 |
| 4915234 | Cosmetic demonstrator A cosmetic demonstrator comprising a substantially conical container having cylindrical sidewalls with first and second ends connected thereto wherein the first end contains a concave depression for storing the cosmetic and the second end contains a centr... | 04/10/1990 |
| 4836703 | Lead cartridge opening and closing unit A lead cartridge opening and closing unit wherein outward engaging piece portions are provided on a chuck type opening and closing mechanism which is divided into sections in the diametrical direction and has inward elastic force and which is further disp... | 06/06/1989 |
| 4659242 | Lead loading mechanical pencil A mechanical pencil having an exchangeable lead storing container has a feeding mechanism provided at one end with a coupling pin which snugly fits a coupling recess formed in the storing cartridge. The feeding opening connecting the interior of the cartr... | 04/21/1987 |
| 4657421 | Mechanical pencil An improvement in the mechanical pencil of the type shown in U.S. Pat. No. 4,320,982. The improved mechanical pencil has a tubular outer casing, a coil spring disposed within the outer casing and an inner tube slidably inserted through the outer casing an... | 04/14/1987 |
| 4603990 | Mechanical pencil with refill cartridge A mechanical pencil comprising a lead feed mechanism built within the body thereof and a lead guide connected to the lead feed mechanism and having a cartridge reception bore of a diameter which is practically the same as the inside diameter of the body, ... | 08/05/1986 |
| 4583874 | Knock-type propelling pencil with storage cartridge A knock-type propelling pencil, of which a lead casing is made in the form of a cartridge so that supply of new spare leads can be completed by only inserting the cartridge accommodating the given leads into lead cylinder in outer cylinder and thereby mak... | 04/22/1986 |
| 4408921 | Detachable head member having slit structure A marking pen containing a head seat member which is adapted to be readily engaged with a shaft tube, whereby the tip member of the marking pen can be exchanged and the extrusion length of the top part of the tip member can be adjusted. On the outer surfa... | 10/11/1983 |
| 4403691 | Spare lead holder A holder for spare lead comprises a hollow cylindrical holder body, said holder having an open end portion and a longitudinal groove formed on the inner wall along the axial direction of the holder body for locating only a suitable number of leads to a po... | 09/13/1983 |
| 4264227 | Press-out type writing tool A press-out type writing tool having a holder body and a mechanism disposed in the holder body for pressing out pencil lead. The mechanism includes a depressing tube, a chuck for clamping the lead and a lead clamp. The lead clamp is formed separately from... | 04/28/1981 |
| 4238163 | Magnetic writing implement A magnetic writing implement comprises a tubular casing with a writing unit which is frictionally interfitted with the conical end of the casing, a storage tube slideably engaged within the casing for storing a plurality of writing units therein, an eject... | 12/09/1980 |
| 4140408 | Push type mechanical pencil A push type mechanical pencil having an inner cylinder made of a synthetic resin including a chuck portion and a spare leads containing tube portion communicating with the chuck portion. An integrally molded inner cylinder unit is provided which has a hol... | 02/20/1979 |
