U.S. patent number D316,136 [Application Number 07/402,247] was granted by the patent office on 1991-04-09 for combined shower head and filter. Invention is credited to David Underwood.
United States Patent | D316,136 |
Underwood | April 9, 1991 |
Inventors: | Underwood; David (N. Richland Hills, TX) |
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Appl. No.: | 07/402,247 |
Filed: | September 5, 1989 |
Current U.S. Class: | D23/228; D23/209 |
Field of Search: | ;D23/213,223-229,200,207-210 ;4/191-192,567-570,599-603,596,615 ;239/276,280,281,282-283,288.5,310,443-449,456-460,550-552,556-559,562-565,567 ;210/136,198.1,205.206,231,241,244-245 |
D263867 | April 1982 | Thompson |
D274168 | June 1984 | Whedon et al. |
3370711 | February 1968 | Hetzelberger et al. |
3760951 | September 1973 | Mansfield |
3998390 | December 1976 | Peterson et al. |
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