Earphone

- Sony Corporation
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Description

FIG. 1 is a front elevational view of an earphone showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right-side elevational view thereof, the left-side being a mirror image thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
4455457 June 19, 1984 Akira
4736435 April 5, 1988 Yokoyama et al.
Foreign Patent Documents
3223469 May 1983 DEX
3420297 December 1984 DEX
Patent History
Patent number: D315350
Type: Grant
Filed: Dec 18, 1987
Date of Patent: Mar 12, 1991
Assignee: Sony Corporation (Tokyo)
Inventor: Tameaki Ikeda (Tokyo)
Primary Examiner: B. J. Bullock
Assistant Examiner: Sandra Morris
Attorney: Lewis H. Eslinger
Application Number: 7/134,902
Classifications
Current U.S. Class: Headphone (D14/223)