Headphone

- Sony Corporation
Description

FIG. 1 is a top, front and right-side perspective view of a headphone, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right-side elevational view thereof, the left-side being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D316551 April 30, 1991 Ichikawa
4420657 December 13, 1983 Larkin
Other references
  • Hifidelity Magazine, Sep. 14, 1987, p. 111, "Sony" Earphone.
Patent History
Patent number: D331057
Type: Grant
Filed: Jun 6, 1990
Date of Patent: Nov 17, 1992
Assignee: Sony Corporation (Tokyo)
Inventor: Yasuaki Isonaga (Kawasaki)
Primary Examiner: Melvin B. Feifer
Attorneys: Lewis H. Eslinger, Jay H. Maioli
Application Number: 7/533,902
Classifications