Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7334941 | Apparatus and method for washing of items An apparatus for washing items comprises a generally cylindrical mesh housing; a first wall and a second wall, said first wall and said second wall being positioned within said housing so as to define first, second and third compartments in said housing; an opening ... | 02/26/2008 |
| 7077900 | Method for fabricating optical fiber preform using extrusion die Disclosed is a method of fabricating a photonic crystal fiber preform using an extrusion die, comprising the step of extruding a first optical material into a plurality of dispersed phases to axially orient the dispersed phases. ... | 07/18/2006 |
| 7055876 | Bag for carrying box-shaped objects A bag for carrying boxes-shaped objects, preferably pizza boxes (15, 16), includes a rectangular bottom wall portion (1) side wall portions (3, 5) attached to the base wall portion (1) and handles (7) at opposite side wall portions... | 06/06/2006 |
| 6715919 | Paper bag with film inner bag A paper bag with a film inner bag in which the inner bag element is constructed so that its closed end portions can be torn in the lateral direction, thus allowing easy opening by hand across the entire width of the bag or across a part of this width. The inner bag ... | 04/06/2004 |
| 6187396 | Bag for wrapping food items A bag for wrapping food items is formed of a composite material including at least one first layer of cellulose-containing material having a specific weight of from 15 to 40 g/m2 and a second layer having a thickness of from 6 to 20 μm. The co... | 02/13/2001 |
| 5693386 | Decorative gift article A decorative gift article includes at least one, but preferably more than one, gift item, and a support of a predetermined countenance that is to be used for presenting the gift item or items. A retaining frame secured to the support serves to retain the ... | 12/02/1997 |
| 5478153 | Multilayer sack or bag with bottom The invention concerns a multilayer sack or bag with side folds which consists of several tubular webs with side folds inserted one into the other, in which arrangement at least one open end is closed by a bottom. To form a bottom that is comparatively le... | 12/26/1995 |
| 5437508 | Sack or bag with bottom portion A sack or bag has a front wall and a rear wall which are respectively connected laterally by a lateral fold, with a strip of the front wall together with the lateral folds on at least one of the two initially open ends being folded about a first folding l... | 08/01/1995 |
| 5134001 | Liminated multilayer film composite and heat sealed bag made therefrom An adhesively laminated composite plastic film comprising at least two layers of preformed plastic film adhered together by means of an adhesive material disposed therebetween but having preselected areas which contain neither the adhesive nor anything el... | 07/28/1992 |
| 4911960 | Laminating adhesive for film/paper microwavable products Wet laminating adhesives capable of withstanding the stresses encountered during heat sealing operations are prepared from emulsion copolymers consisting essentially of 45 to 80% by weight of a vinyl ester of an alkanoic acid, 10 to 30% ethylene, 5 to 30%... | 03/27/1990 |
| 4822177 | Carrying bag, particularly bathing bag A carrying bag, particularly a bathing bag, comprises a pattern folded about a folding line whereby pattern sections folded one upon the other are bonded to one another on at least two edges. In order to keep the interior of the carrying bag easily access... | 04/18/1989 |
| 4801214 | Color filter for wind-up system color changer There is disclosed a color filter for wind-up system color changer which comprises two sheets of laminated transparent films in continuous length, having a plural number of units each comprising a sheet of a transparent film folded in two provided in seri... | 01/31/1989 |
| 4709398 | Chain bags, method and apparatus A bag chain structure and method of making wherein fastener strips are attached across the surface of the film at predetermined intervals with the fastener strips having a plurality of rib and grooves so that the rib and grooves interlock when the strip i... | 11/24/1987 |
| 4512788 | Top loading upright vacuum cleaner bag and method of manufacturing the same A vacuum cleaner bag for use with top loading vacuum cleaner has a first collection tube and a second transfer tube, the tubes having communicating apertures near the top thereof, with a thermoplastic coating on the inner walls of the second transfer tube... | 04/23/1985 |
| 4498192 | Bag having an overlapped closure and method of fabricating the same An improved bag construction, and a method of bag forming, are disclosed which gives an economical yet strong, burst- and leak-resistant closure without the necessity of sewing or use of expensive stepped cut tubes. The bag is formed using a tube having o... | 02/05/1985 |
| 4480752 | Pinch closure bags with opening feature and method of manufacturing them A paper bag having a pinch closure provided with a tab extending from within the bag between the portions of the walls of the bag in the pinch closure and projecting out of the pinch closure, the projecting portion of the tab being adapted to be grasped a... | 11/06/1984 |
| 4461031 | Tubular bag and method of making the same A tubular web has a bottom which is tightly sealed to enable pressurizing of the bag, the bottom including a first band of thermosetting glue imprinted across the length of the web at the interior of the tube. A second band and a third band of thermosetti... | 07/17/1984 |
| 4056045 | Production of bags from a panel of sheet material An elongate panel of a flexible sheet material which is not heat-sealable is formed into a succession of bags by advancing the panel in the direction of its length between a rectangular shaping tube and a folding box to form the panel into a tubular struc... | 11/01/1977 |
