Headphone

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Information

Patent Grant
D319241

References
Source

Patent Number
D319,241
Date Filed
Friday, April 14, 1989
35 years ago
Date Issued
Tuesday, August 20, 1991
33 years ago

Inventors
Original Assignees
- Sony Corporation
Examiners
- Shooman; Theodore M.
Agents
- Eslinger; Lewis H.

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- D14 204
- D14 205
- D14 206
- D14 223
- 381 25
- 381 68
- 381 91
- 381 122
- 381 156
- 381 158
- 381 183
- 381 187
- 379 430
- 379 444
- 181 129
- 181 133
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a headphone, as shown and described.

US Referenced Citations (3)

Number	Name	Date	Kind
D297324	Kohno	Aug 1988
D305541	Hirose	Jan 1990
D310081	Daido et al.	Aug 1990

Non-Patent Literature Citations (2)

Entry
Stereo Review; Dec. 1987; p. 77; top center--Nakamichi Model SP-7 Headphones.
Crutchfield Cat.--Summer 1986; p. 89; top right--Model MDR-M77.