U.S. patent number D281,500 [Application Number 06/496,118] was granted by the patent office on 1985-11-26 for interphone. This patent grant is currently assigned to Sharp Corporation. Invention is credited to Kendo Makihara, Hiroshi Yamagata.
United States Patent | D281,500 |
Yamagata , et al. | November 26, 1985 |
Inventors: | Yamagata; Hiroshi (Osaka, JP), Makihara; Kendo (Osaka, JP) |
---|---|
Assignee: | Sharp Corporation (Osaka,
JP) |
Appl. No.: | 06/496,118 |
Filed: | May 19, 1983 |
Nov 30, 1982 [JP] | 57-54177 | |||
Current U.S. Class: | D14/159 |
Field of Search: | ;D14/52,58,99,59 ;D10/106 ;D13/40,41 ;179/2EA,99A,37 ;455/89 |
D199677 | December 1964 | Mattingly |
D210016 | January 1968 | Kahn |
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Housewares Mag.; Mar. 7-13, 1979, p. 23; "Pyr-A-Larm" Model P5F. . Popular Mechanics Mag., Apr. 1980, p. 184, "Door Alert" by The Bottom Line. . Popular Mechanics; Feb. 1984; Regency Models MX5000 & 3000 on p. 165.. |
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