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 |
| 3986234 | Releasable fastener A releasable fastener for securing together two straps, includes a link adapted for attachment to one such strap and shaped as a generally plate-like strike having a pair of spaced-apart locking lugs on opposite edges defining locking notches. A guide cha... | 10/19/1976 |
| 3980121 | Bracket for use in a retractable awning A bracket mountable on a supporting surface for retaining a pair of awning support members in a retracted juxtapositional storage position has a pair of side plate members retained in spaced parallel vertically oriented relationship by a cross-web member ... | 09/14/1976 |
| 3978846 | Syringe for taking blood samples The syringe of the present invention includes a tubular body having a plunger slidably received therein in fluid tight relationship so as to define a void space at the leading end of the syringe when the plunger is fully inserted, the void space being in ... | 09/07/1976 |
| 3973346 | Fishing pole holder A fishing pole holder for supporting a fishing pole then for lifting the pole in response to a pull on the fishing line is formed by a swingable handle engaging socket mounted upon a ground or other support and biased to a vertically upright position by a... | 08/10/1976 |
| 3967716 | Apparatus for loading cartons An apparatus for assembling cartons and delivering the cartons in rows to preselected locations includes a framework upon which a conveyor is positioned to receive cartons and to advance the cartons to an assembly station, a stop gate at the assembly stat... | 07/06/1976 |
| 3963426 | Process for gasifying carbonaceous matter A process for the gasification of coal and other carbonaceous materials in which solid particulate carbonaceous material is dried without pyrolysis or oxidation by direct contact with a fluent stream of hot synthesis gas product. The dried carbonaceous ma... | 06/15/1976 |
| 3960139 | Syringe device with means for removing contaminates when drawing blood sample A syringe for taking blood samples includes a tubular body having a main plunger slidably received therein in fluid tight relationship. The tubular body has an opening through the leading end in communication with connection means for receiving a hypoderm... | 06/01/1976 |
| 3953930 | Ski boot with flexible toe A ski boot made of a rigid shell having a flexible sole thereon includes a toe member which is telescopically related to a rear member at a location corresponding to the ball of a user's foot so that the shell will flex during walking movements but can be... | 05/04/1976 |
| 3954234 | Single point ground emergency seat restraint divestment system A restraint divestment system for releasing a crewman equipped with a parachute and restraint harness from an aircraft ejection seat mounted restraint assembly in the event of a ground emergency. A single point crewman actuated mechanism releases the leg ... | 05/04/1976 |
| 3954709 | Phenylethyl group containing resins for the synthesis of peptides The phenylethyl group, ##SPC1## In polymer carriers for the synthesis of peptides and peptide amides, particularly polymer carriers such as styrene-1% divinyl benzene polymers for use in solid phase peptide synthesis. The invention described herein was ma... | 05/04/1976 |
| 3952802 | Method and apparatus for in situ gasification of coal and the commercial products derived therefrom The process of the invention includes the concept of igniting a coal formation in situ with hot granular material and subsequently allowing the material to flow into the burning coal formation to serve as a propping agent in the event of a cave-in. Gasify... | 04/27/1976 |
| 3949960 | Bracket system for mounting retractable awnings A bracket system for mounting the box or housing of retractable roll-up awnings on curved or straight sides of recreational vehicles. The bracket system includes a generally L-shaped mounting bracket for supporting the awning housing, bracket clamps for s... | 04/13/1976 |
| 3948320 | Method of in situ gasification, cooling and liquefaction of a subsurface coal formation A method of liquefying a coal formation in situ wherein the coal formation has been preheated as by a coal gasification project, includes the steps of establishing injection and removal passages connecting the coal formation to the surface, injecting wate... | 04/06/1976 |
| 3946721 | Method of collecting and storing solar heat The method of collecting, storing and transmitting solar heat includes the steps of absorbing solar heat on a collector surface wherein the collector surface is insulated from the ambient environment, passing air across the collector surface in a heat tra... | 03/30/1976 |
| 3946720 | Solar heat collector A self-contained apparatus for collecting, storing and transmitting solar heat includes an elongated insulated housing in which a quantity of heat retaining material is confined and a collector on one face of the housing which has a multi-layered glass fa... | 03/30/1976 |
| 3946944 | Method of heating a building structure with solar heat A self-contained apparatus for collecting, storing and transmitting solar heat includes an elongated insulated housing in which a quantity of heat retaining material is confined and a collector on one face of the housing which has a multi-layered glass fa... | 03/30/1976 |
| 3945162 | Tire chain device A tire chain device includes a backing plate mountable between the wheel and brake drum of a vehicle and having a continuous circular anchor rod as part thereof. A plurality of cross chains are connected at one end to a main chain member extending around ... | 03/23/1976 |
| 3945134 | Ski boot A ski boot includes a foot portion and a leg portion extending upwardly along the calf of the leg from the foot portion and being pivotally connected to the foot portion for movement about a generally horizontal axis extending transversely of the boot. Th... | 03/23/1976 |
| 3945718 | Sync contact switch for movie camera A switch adapted to cooperate with the pull-down claw of a silent movie camera for transmitting an electrical signal each time a frame of movie film is advanced past the shutter of the camera includes an insulating base adapted to be positioned within the... | 03/23/1976 |
| 3945465 | Multi-function air treatment unit This invention relates to a unitized air line filter and lubricator that includes provision for a pressure regulator therebetween that can either be by-passed or rendered operative by simply opening certain preformed passages in the manifold that connect ... | 03/23/1976 |
| 3942707 | Shoe box construction A shoe box includes a lower receptacle portion of generally rectangular horizontal cross section having downwardly convergent side walls and end walls so as to be nestable with like receptacles. A hollow partition is disposed internally of the receptacle ... | 03/09/1976 |
| 3942802 | Golfing aid A golfing aid for improving a golfer's swing plane and putting stroke includes a base member with an elongated rod connected to the base member by a pivotal support arm wherein the elongated rod is movable between a first position wherein it inclines upwa... | 03/09/1976 |
| 3936333 | Method for prefabricating brick panels An assembly line method of prefabricating brick panels in a factory for shipment to the intended site of use includes the steps of mixing a supply of mortar in one area of the plant, placing the mortar in a plurality of pressurized containers which are mo... | 02/03/1976 |
| 3934723 | Light bulb container A light bulb container is made of a plastic foam material and includes a lower open topped receptacle portion with a downwardly opening top member pivotally connected to the receptacle portion along one edge thereof. The receptacle portion has a raised pa... | 01/27/1976 |
| 3932153 | Nebulizer bacteria filter A bacteria filter includes a pair of generally conical housing sections having confronting marginal flanges adapted to be welded together to seal the sections into an integral filter housing. The flanges have a pair of tongue-in-groove connectors to facil... | 01/13/1976 |
| 3930315 | Apparatus for sizing a door to fit a selected doorway The method of the invention includes the steps of positioning a support member having a substantially vertically extending recording surface thereon in the doorway for which the door is being sized, recording the contour of each side door jamb of the door... | 01/06/1976 |
