Headphone

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Information

Patent Grant
D318669

References
Source

Patent Number
D318,669
Date Filed
Friday, March 17, 1989
35 years ago
Date Issued
Tuesday, July 30, 1991
33 years ago

Inventors
- Takao Nakayama
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.

Priority Claims (1)

Number	Date	Country	Kind
63-40596	Oct 1988	JPX

US Referenced Citations (2)

Number	Name	Date	Kind
D291198	Bellini	Aug 1987
4668842	Yokoyama et al.	May 1987

Non-Patent Literature Citations (2)

Entry
Dealerscope Merchandising; Mar. 1988; p. 83; Top right-Model LT-105 headphones.
HFD; 01/12/87; p. 100; Bottom left-Azden Model DSR-48 headphones.