U.S. patent number D314,628 [Application Number 07/110,801] was granted by the patent office on 1991-02-12 for shingle. This patent grant is currently assigned to CertainTeed Corporation. Invention is credited to Robert L. Jenkins, Husnu M. Kalkanoglu, John R. Klein, deceased, Michael J. Noone, Kermit E. Stahl, Phillip H. Whitford.
United States Patent | D314,628 |
Jenkins , et al. | February 12, 1991 |
Inventors: | Jenkins; Robert L. (Coatesville, PA), Kalkanoglu; Husnu M. (Swarthmore, PA), Klein, deceased; John R. (late of Malvern, PA), Noone; Michael J. (Wayne, PA), Stahl; Kermit E. (North Whales, PA), Whitford; Phillip H. (Casselberry, FL) |
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Assignee: | CertainTeed Corporation (Valley
Forge, PA) |
Appl. No.: | 07/110,801 |
Filed: | October 20, 1987 |
Current U.S. Class: | D25/139 |
Field of Search: | ;D25/138,139,140,141,142,143 ;52/518,519,521,523,553,554,557,558,559 |
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