...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 |
| 7398562 | Article with 3-dimensional secondary element An article having a generally domed-shaped crown and an exterior surface. A secondary element extending from the exterior surface at an intersection area between the crown and the secondary element. A portion of the exterior surface of the crown typically being rais... | 07/15/2008 |