U.S. patent number D361,389 [Application Number D/006,151] was granted by the patent office on 1995-08-15 for cover unit for ceiling rails. This patent grant is currently assigned to Armstrong World Industries, Inc.. Invention is credited to Wesley T. K. Bischel.
United States Patent | D361,389 |
Bischel | August 15, 1995 |
Inventors: | Bischel; Wesley T. K. (Elizabethtown, PA) |
---|---|
Assignee: | Armstrong World Industries,
Inc. (Lancaster, PA) |
Appl. No.: | D/006,151 |
Filed: | March 22, 1993 |
Current U.S. Class: | D25/55 |
Field of Search: | ;D25/121,58,119,125,55 ;52/484,417,456,459,463,483,488-489,475,495,476,502,144,145,716-717,813,335 |
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3828506 | August 1974 | Phillips |
4569175 | February 1986 | Abciuk |
4926606 | May 1990 | Hanson |
5040347 | August 1991 | Valvis |
5088255 | February 1992 | Emanuel |
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