U.S. patent number D472,175 [Application Number D/157,635] was granted by the patent office on 2003-03-25 for carbon monoxide detector. This patent grant is currently assigned to Universal Security Instruments, Inc. Invention is credited to Jeffery Welsh.
United States Patent | D472,175 |
Welsh | March 25, 2003 |
Inventors: | Welsh; Jeffery (Owings Mills, MD) |
---|---|
Assignee: | Universal Security Instruments,
Inc (Owings Mills, MD) |
Appl. No.: | D/157,635 |
Filed: | March 25, 2002 |
Current U.S. Class: | D10/106.5; D10/81 |
Current International Class: | 1005 |
Field of Search: | ;D10/81,106 ;340/632,628,636,693.5,691.5,539,693.7,693.1,693.9,693.11,693.12 ;422/86,94 ;73/23.25 ;116/280 |
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