Microphone

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Information

Patent Grant
D253468

References
Source

Patent Number
D253,468
Date Filed
Thursday, June 15, 1978
46 years ago
Date Issued
Tuesday, November 20, 1979
45 years ago

Inventors
- Donald W. Peterson
Original Assignees
- The Astatic Corporation
Examiners
- Ansher; Bernard
Agents
- Williams; Michael

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- 179 146 R
- 179 178
- 179 179
- 179 187
- 179 188
- 179 121 D
- 179 122
- 179 115 R
- 179 139
- 179 1155 R
- D14 12
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a microphone, substantially as shown and described.

US Referenced Citations (4)

Number	Name	Date	Kind
D213567	Kahn	Mar 1969
D230990	Kollesberger, Jr.	Mar 1974
D247707	Armstrong	Apr 1978
3642558	Gorike	Feb 1972

Non-Patent Literature Citations (1)

Entry
Radio Shack, 1977 Electronics Cat., .COPYRGT.1976, p. 33, Electret Condenser Microphone.