Interphone

- Sharp Corporation
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Description

FIG. 1 is a front elevational view of the interphone showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D199677 December 1964 Mattingly
D210016 January 1968 Kahn
D210595 March 1968 Kahn
D212001 August 1968 Roberts
D265299 July 6, 1982 Garetsky
D271089 October 25, 1983 Mallory
D272050 January 3, 1984 Gibbs
D272993 March 13, 1984 Chan
D274518 July 3, 1984 Doodson
D276599 December 4, 1984 Logan et al.
4310923 January 12, 1982 Kennedy
Other references
  • 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.
Patent History
Patent number: D281500
Type: Grant
Filed: May 19, 1983
Date of Patent: Nov 26, 1985
Assignee: Sharp Corporation (Osaka)
Inventors: Hiroshi Yamagata (Osaka), Kendo Makihara (Osaka)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 6/496,118
Classifications
Current U.S. Class: D14/92; D14/58; D14/52