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 |
| 7225898 | Lift A lift between lower and upper levels of a house includes a cabin and an essentially horizontal platform which is essentially vertically movable by actuating elements arranged thereunder. The actuating elements include at least one pair of rotatably mounted arms piv... | 06/05/2007 |
| 7008166 | Door lifting apparatus and method A door lifting apparatus includes a frame and a lift mechanism. The lift mechanism includes a slide and a lever. The slide includes a plurality of holders and a plurality of glides, wherein the holders are operable to engage and support a door while the glides coope... | 03/07/2006 |
| 6736371 | Extendible jack bar A central tube has a rectangular cross section and is attached to an end piece which abuts against a wall of a compartment or the side of an object to be held in place. The other end of the central tube is telescopically fitted within a second rectangular tube. One ... | 05/18/2004 |
| 6347817 | Locking device for use in a cargo support to lock a retractable tube A locking device installed in a cargo support to lock a retractable tube, including a holder frame fastened to the outer tube of the retractable tube, a rack moved in a longitudinal sliding way defined between two parallel lugs of the holder frame, a driv... | 02/19/2002 |
| 6322310 | Slope extension for vehicle restraints Two embodiments of a slope extension are disclosed herein for use with a vehicle restraint. In each embodiment, the vehicle restraint is adapted to releasably secure a parked trailer or other vehicle to an adjacent structure, such as a loading dock, and i... | 11/27/2001 |
| 6152434 | Support The invention relates to a support for articles such as ceiling slabs, roof battens, machine parts or the like. The support comprises at least two telescopic tubes or one telescopic eod in at least one tube. A first tube or the rod can be displaced by a f... | 11/28/2000 |
| 6027100 | Apparatus for supporting modular furniture Apparatus for supporting modular furniture including panels to allow access to a floor for reflooring or the like, and suitable for supporting a panel end while providing a clear space under said panel end. The apparatus has a bridge member capable of spa... | 02/22/2000 |
| 5942828 | Transverse flux machine In known transverse flux machines, the losses in the soft magnetic body prevent an increase in efficiency. While the production of the winding is remarkable owing to its simplicity, the production of the laminated iron body conveying the magnetic flux inc... | 08/24/1999 |
| 5199687 | Lifting jack for railroad car platform Generally there is provide herein a manually operated jack for lifting a platform within a railroad car. The device employs a two part telescoping support with a lever member pivotally connected to the lower part. One end of the lever extends for manual o... | 04/06/1993 |
| 5135200 | Snowmobile jack A snowmobile jack is described herein that raises the rear of the snowmobile off of the ground when it is not in use. Manufacturers suggest that snowmobiles be raised when not in use, so that their tracks do not freeze to the ground. Manufacturers also re... | 08/04/1992 |
| 4457492 | Lifting apparatus A lifting apparatus for lifting a load such as a motorcycle. The apparatus includes a base and a load support which may be placed under the load to be lifted. The base and load support each include vertical columns, one column being positioned in the othe... | 07/03/1984 |
