U.S. patent number D537,583 [Application Number D/237,199] was granted by the patent office on 2007-02-27 for backpack cleaner. This patent grant is currently assigned to Shop Vac Corporation. Invention is credited to Robert L. Crevling, Jr., John Griffin, Craig A. Seasholtz.
United States Patent | D537,583 |
Crevling, Jr. , et al. | February 27, 2007 |
Inventors: | Crevling, Jr.; Robert L. (Williamsport, PA), Griffin; John (Phoenix, AZ), Seasholtz; Craig A. (Avis, PA) |
---|---|
Assignee: | Shop Vac Corporation
(Williamsport, PA) |
Appl. No.: | D/237,199 |
Filed: | August 25, 2005 |
Current U.S. Class: | D32/21 |
Current International Class: | 1505 |
Field of Search: | ;D32/15-18,21,22-24,31 ;15/314,324,344,329,347,320-321,412,DIG.1,353-354,301,385,93.1,405,330,415.1,327.5,323 |
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