U.S. patent number D378,913 [Application Number D/031,109] was granted by the patent office on 1997-04-22 for cover for electrical boxes. This patent grant is currently assigned to The Lamson & Sessions Co.. Invention is credited to William M. Chambers, David P. Marshall.
United States Patent | D378,913 |
Chambers , et al. | April 22, 1997 |
Inventors: | Chambers; William M. (Valley City, OH), Marshall; David P. (Chagrin Falls, OH) |
---|---|
Assignee: | The Lamson & Sessions Co.
(Cleveland, OH) |
Appl. No.: | D/031,109 |
Filed: | November 17, 1994 |
Current U.S. Class: | D13/156 |
Field of Search: | ;D13/152,156,184 ;D14/240 ;174/66,67 ;220/3.2,3.8,3.9,241,242 ;439/147 |
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4851612 | July 1989 | Peckham |
4874906 | October 1989 | Shotey |
4951182 | August 1990 | Simonson et al. |
4988832 | January 1991 | Shotey |
5010211 | April 1991 | Bartee |
5228584 | July 1993 | Williams, Jr. |
5280135 | January 1994 | Berlin et al. |
Guardian series outlet cover on p. 27 of New Equipment Digest Apr. 1993.. |
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