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 |
| 5531352 | Agricultural container An agricultural container or fruit bin made of plastic has four vertical walls, triangular corner columns and a bottom element. The exteriors of the vertical walls and bottom element have rectangular rib patterns. Openings in the vertical walls and bottom... | 07/02/1996 |
| 5378056 | Triangle display and storage stand A display and storage stand for retail stores comprises three triangular platforms, one above the other. Each triangle is truncated at each apex. The triangles are joined at their truncated portions by steel bars bolted to the triangles. Two sides of the ... | 01/03/1995 |
| 5305548 | Orchard heat exchanger An orchard heat exchanger comprises an engine-driven shaft having an air propeller on each end. The assembly is enclosed in an open-ended horizontal cylindrical shroud, which has a large converging-diverging air inlet at the top, and is trailer mounted. T... | 04/26/1994 |
| 5287963 | Ice enclosure An ice enclosure for stapling on to the top layer of a stack or pallet load of packed cartons of produce comprises an enclosure formed of cardboard or corrugated board, and having vertical walls, each wall having a horizontal tab extending outward for sta... | 02/22/1994 |
| 5205730 | Garden torch with removable container A garden torch, or tiki torch, comprises a pole pointed at its lower end with a bracket attached to the top of the pole. The upper portion of the bracket is a cover with a wick and a wick hole. A beer can or soft drink can, the contents of which have been... | 04/27/1993 |
| 5163206 | Shear saver A device for arresting the fall of a hand-held implement, such as hair shears, in case the operator drops them accidentally, comprises a finger ring, a short flexible connector attached to the finger ring, and a spring ring or sister hook attached to the ... | 11/17/1992 |
| 5078283 | Customer convenience center A customer convenience center, or merchandise display stand, for use principally in convenience stores, the stand having a metal base frame on legs or casters or a combination thereof, perforated hardboard panels resting on the frame, said panels retained... | 01/07/1992 |
| 5066302 | Breast prosthesis A one-piece prosthesis for use by a woman who has undergone a mastectomy, the prosthesis comprising the form of a complete breast, without voids therein, and with a supplement extending toward the axilla, and a supplement extending toward the clavicle, ea... | 11/19/1991 |
| 5061150 | Single-handed skidding apparatus for logs and the like An apparatus for single-handed operation in skidding logs, stumps, poles and the like. An A-frame with rearwardly-extending beam is attached to the three-point hitch of a tractor. A fluid-operated grapple, which will inherently adjust to various shapes an... | 10/29/1991 |
| 5016899 | No-slack restricted-drum stabilizer for commercial multitrailer combinations An apparatus for reducing or eliminating rearward amplification of yaw in commercial multi-trailer highway combinations by maintaining constant tension on a cable-and-pulley system connecting a towed trailer with a towing trailer, and offering constant re... | 05/21/1991 |
| 5010872 | Steam-producing orchard heater A steam-producing orchard heater operating on the pulse-jet combustion principle has a horizontal cylindrical combustion chamber with an exhaust tube of smaller diameter extending coaxially from one end thereof, an air supply and ignition tube, extending ... | 04/30/1991 |
| 4993675 | Can caddy A one-piece can caddy, or holder, for a beverage can has a base support structure approximating the shape of the bottom of a beverage can, a wall extending upward from a portion of the periphery of the base support structure, a handle extending radially o... | 02/19/1991 |
| 4945580 | Volume-selective water closet flushing system A buoyant outlet closure, or `flapper` in the preferred embodiment, is vented at a selectively predetermined time in the water closet flushing cycle, causing the flapper to become non-buoyant and to drop and to close the tank outlet, effecting a premature... | 08/07/1990 |
| 4913389 | Unitary target stand A one-piece holder for shooting targets, archery targets, yard signs and the like has a first crossbar with a clip at each end having a toothed notch into which the target or sign suitable for the named purposes may be inserted. The first crossbar is supp... | 04/03/1990 |
| 4905953 | Fifth wheel stabilizer An apparatus for limiting the side sway, or yaw, of fifth wheel recreational trailers when such trailers are parked without being attached to the towing vehicle. Such trailers have a steel housing projecting downward below the front, or cantilevered end. ... | 03/06/1990 |
