U.S. patent number D453,277 [Application Number D/134,590] was granted by the patent office on 2002-02-05 for mattress with built-in bed pan. Invention is credited to R. L. Wilson.
United States Patent | D453,277 |
Wilson | February 5, 2002 |
Inventors: | Wilson; R. L. (Lauderhill, FL) |
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Appl. No.: | D/134,590 |
Filed: | December 26, 2000 |
Current U.S. Class: | D6/605 |
Current International Class: | 0609 |
Field of Search: | ;D6/595,596,601,604,605 ;5/630,631,633,636,637,652-654,655.3,655.9,930,907,695 |
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2770606 | January 1985 | Ullven |
5185897 | February 1993 | Laanen |
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