Headphones

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Information

Patent Grant
D270634

References
Source

Patent Number
D270,634
Date Filed
Monday, June 29, 1981
43 years ago
Date Issued
Tuesday, September 20, 1983
41 years ago

Inventors
- Leon B. Ungar
Original Assignees
- Culver Electronic Sales, Inc.
Examiners
- Corrigan; Jane E.
Agents
- Schaap; Robert J.

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- D14 36
- D14 68
- D14 70
- D14 76
- D14 99
- 179 156 R
- 179 182 R
- 179 182 A
- 181 129
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for headphones, as shown and described.

US Referenced Citations (2)

Number	Name	Date	Kind
D204886	Kliewer	May 1966
D228352	Itagaki	Sep 1973

Non-Patent Literature Citations (2)

Entry
Grundig Technical Information Journal (Germany), vol. 25, #5, 5-78, p. 287, "Bild 1 Kopfhorer GDH 209".
High Fidelity, 7-79, p. 101, Beyer Dt 302 Earphones.