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...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 6177022 | Self-cleaning fuel oil strainer A self-cleaning fuel oil strainer, coupled to a continuous fuel flow, that includes a pair of canisters, each having a cylindrical wedge wire fuel oil filter screen. An elongated brush running the length of the screen is disposed between two confining wal... | 01/23/2001 |
| 5229135 | Sustained release diltiazem formulation A sustained release diltiazem formulation for oral administration comprising a pellet having a central sugar sphere a plurality of alternating first and second layers surrounding the sphere to form a core, the first layer comprising a water soluble pharma... | 07/20/1993 |
| 5209452 | Ergonomic support platform for portable computers A ergonomic support platform for portable computers. The platform is formed as an integral unit and has an angularly extending support portion for supporting the portable computer thereon so that its keyboard is at an ergonomically appropriate angle. The ... | 05/11/1993 |
