Headphone

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Information

Patent Grant
D336646

References
Source

Patent Number
D336,646
Date Filed
Monday, November 25, 1991
33 years ago
Date Issued
Tuesday, June 22, 1993
31 years ago

Inventors
Original Assignees
- Sony Corporation
Examiners
- Ansher; Bernard
- Morris; Sandra
Agents
- Eslinger; Lewis H.
- Maioli; Jay H.

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- D21 204-206
- D21 223
- D29 19
- 181 129
- 379 430
- 379 444
- 381 25
- 381 68
- 381 158
- 381 183
- 381 187
- Term of Grant
  14Years

Information

Abstract

Description

Claims

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

Priority Claims (1)

Number	Date	Country	Kind
3-16551	Jun 1991	JPX

US Referenced Citations (10)

Number	Name	Date	Kind
D228352	Itagaki	Sep 1973
D229833	Becker	Jan 1974
D235210	Hill	May 1975
D244037	Warner et al.	Apr 1977
D254183	Doodson	Feb 1980
D255352	Besasie	Jun 1980
D262019	Upshaw	Nov 1981
D317767	Banks	Jun 1991
4829571	Kakiuchi et al.	May 1989
5018599	Dohi et al.	May 1991

Non-Patent Literature Citations (4)

Entry
Popular Mechanics, Nov. 1980 p. 96, model AKG K-340, right side.
Telephony, Aug. 2, 1982 p. 15, headset, bottom.
Dak Industries, p. 9 headset, top.
Radio Shack 1988 Cat. Realistic Nova-40 headphones.