Loudspeaker

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Information

Patent Grant
D304586

References
Source

Patent Number
D304,586
Date Filed
Wednesday, November 25, 1987
36 years ago
Date Issued
Tuesday, November 14, 1989
35 years ago

Inventors
- Tommyca Freadman
- John F. Castagna
Original Assignees
- Sparkomatic Corporation
Examiners
- Ansher; Bernard
- Shooman; Theodore M.
Agents
- Mason, Fenwick & Lawrence

US Classifications
- D14 - Recording, communication, or information retrieval equipment
Field of Search
- US
- D14 204-216
- D14 219-224
- 312 71
- 381 24
- 381 86-88
- 381 90
- 381 159
- 381 182
- 381 186
- 381 205
- 181 144
- 181 148
- 181 152
- 181 153
- 181 155
- 181 157
- 181 198
- 181 199
- Term of Grant
  14Years

Information

Abstract

Description

Claims

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

US Referenced Citations (4)

Number	Name	Date	Kind
D216019	Patch et al.	Nov 1969
D241554	Bertagni et al.	Sep 1976
D249683	Rams	Sep 1978
D265990	Hartwein et al.	Aug 1982

Non-Patent Literature Citations (1)

Entry
Audio, Nov. 1986, p. 42, Top Left--Duntech Sovereign 2001.