U.S. patent number D501,652 [Application Number D/181,713] was granted by the patent office on 2005-02-08 for doorbell push button. Invention is credited to Thomas Gordon, Theodore Pierson.
United States Patent | D501,652 |
Pierson , et al. | February 8, 2005 |
Inventors: | Pierson; Theodore (Seattle, WA), Gordon; Thomas (Poulsbo, WA) |
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Appl. No.: | D/181,713 |
Filed: | May 15, 2003 |
Current U.S. Class: | D13/171 |
Current International Class: | 1303 |
Field of Search: | ;D10/116,118 ;D13/171,174 ;200/DIG.18,294,296,520,530 |
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D298442 | November 1988 | Murtagh |
D300528 | April 1989 | Drane |
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D404673 | January 1999 | Gordon et al. |
D405471 | February 1999 | Carlson |
D414748 | October 1999 | Pierson et al. |
D421727 | March 2000 | Pierson et al. |
D469411 | January 2003 | Decosse |
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