Earphone

- Sony Corporation
Description

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

FIG. 2 is a cross-sectional elevational view thereof, taken along section lines 2--2 in FIG. 1;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left-side elevational view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D278234 April 2, 1985 Saito
D311007 October 2, 1990 Daido
4646872 March 3, 1987 Kamon et al.
4736435 April 5, 1988 Yokoyama et al.
4742887 May 10, 1988 Yamagishi
Other references
  • Hong Kong Enterprise; 11/87; p. 181; Bottom center-AM/FM radio with headphones.
Patent History
Patent number: D318864
Type: Grant
Filed: Jan 12, 1989
Date of Patent: Aug 6, 1991
Assignee: Sony Corporation (Tokyo)
Inventors: Takefumi Daido (Tokyo), Kazue Kato (Tokyo)
Primary Examiner: Theodore M. Shooman
Attorney: Lewis H. Eslinger
Application Number: 7/296,039
Classifications