U.S. patent number D328,637 [Application Number 07/456,130] was granted by the patent office on 1992-08-11 for air cleaner. This patent grant is currently assigned to North American Philips Corporation. Invention is credited to Alistar Jack, Ronald L. Muller.
United States Patent | D328,637 |
Muller , et al. | August 11, 1992 |
Inventors: | Muller; Ronald L. (Old Saybrook, CT), Jack; Alistar (Grijpskerk, NL) |
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Assignee: | North American Philips
Corporation (New York, NY) |
Appl. No.: | 07/456,130 |
Filed: | December 21, 1989 |
Current U.S. Class: | D23/364 |
Field of Search: | ;D23/364,365 ;422/5,120 ;55/385.2,126,467,473,316 |
3861894 | January 1975 | Marsh |
5034032 | July 1991 | Yikai et al. |
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