U.S. patent number D290,006 [Application Number 06/543,926] was granted by the patent office on 1987-05-26 for telephone speaker housing. This patent grant is currently assigned to American Telephone and Telegraph (AT&T), AT&T Information Systems. Invention is credited to David P. Frost, Gordon E. Sylvester.
United States Patent | D290,006 |
Frost , et al. | * May 26, 1987 |
Inventors: | Frost; David P. (Freehold, NJ), Sylvester; Gordon E. (Jamaica, NY) |
---|---|
Assignee: | American Telephone and Telegraph
(AT&T) (New York, NY) AT&T Information Systems (Holmdel, NJ) |
[*] Notice: | The portion of the term of this patent subsequent to January 22, 1999 has been disclaimed. |
Appl. No.: | 06/543,926 |
Filed: | October 20, 1983 |
Current U.S. Class: | D14/243 |
Field of Search: | ;D14/4,5,12,52,13,53,60,92,61,95,59,26,90,99,100 ;179/179,1R,1L,1D,1C,101,82B |
D225746 | January 1973 | Federico |
D227014 | May 1973 | Ardoline |
D239838 | May 1976 | Crimmins |
D248653 | July 1978 | Hirasa |
D258507 | March 1981 | Dietrich |
D264347 | May 1982 | Peroni |
D269432 | June 1983 | Kowalik et al. |
D274519 | July 1984 | Pontefract |
D277001 | January 1985 | McGarvey et al. |
D277282 | January 1985 | Barton et al. |
D279471 | July 1977 | Nakashima |
D280325 | August 1985 | Joffe et al. |
Fannon Comm. Products, 4 page brochure, Model IN-289N-402, Wired Intercom Systems.. |
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