U.S. patent number D667,541 [Application Number D/343,748] was granted by the patent office on 2012-09-18 for bond pattern on a personal respiratory protection mask. This patent grant is currently assigned to 3M Innovative Properties Company. Invention is credited to Dean R. Duffy, Scott A. Spoo.
United States Patent | D667,541 |
Spoo , et al. | September 18, 2012 |
Inventors: | Spoo; Scott A. (Deer Park, WI), Duffy; Dean R. (Woodbury, MN) |
---|---|
Assignee: | 3M Innovative Properties
Company (St. Paul, MN) |
Appl. No.: | D/343,748 |
Filed: | September 18, 2009 |
Current U.S. Class: | D24/110.1 |
Current International Class: | 2902 |
Field of Search: | ;D24/110-110.6,164 ;D29/108 ;D5/2,4,12,61,63 ;D2/921,952,959 ;128/205.25,206.12,206.13,206.15,206.17,206.19,206.21,206.24,207.13,207.16 ;2/206,424 |
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