U.S. patent number D549,568 [Application Number D/238,712] was granted by the patent office on 2007-08-28 for lug nut. Invention is credited to Leonard Schaeffer.
United States Patent | D549,568 |
Schaeffer | August 28, 2007 |
Inventors: | Schaeffer; Leonard (San Diego, CA) |
---|---|
Appl. No.: | D/238,712 |
Filed: | September 19, 2005 |
Current U.S. Class: | D8/397 |
Current International Class: | 0808 |
Field of Search: | ;D8/382,387,397,398,399,70,86 ;411/81,88,90-93,96-98,103,114,106-108,132-165,172-189,197,204,248,337,338,366.1,366.2,366.3,368-369,371.2,371.5,418,427,429-432,436,437,526,531-538,542,544 ;70/229 ;301/35.623,111.01 ;408/199,223 |
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Campbell Industrial Supply Co. General Catalog, Jun. 2, 1982, No. 209SF High Speed Single Flute Countersink, p. 51; Nobursink Tools No. 1, p. 54. cited by examiner. |
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