Loudspeaker

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Information

Patent Grant
D305660

References
Source

Patent Number
D305,660
Date Filed
Wednesday, July 1, 1987
38 years ago
Date Issued
Tuesday, January 23, 1990
35 years ago

Inventors
- Bruce W. Howze
Original Assignees
- Whelen Technologies, Inc.
Examiners
- Bullock; B. J.
- Shooman; Theodore M.
Agents
- Chilton, Alix & Van Kirk

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 (12)

Number	Name	Date	Kind
D217154	Boldt et al.	Apr 1970
D223255	Boldt et al.	Apr 1972
D247490	Everidge	Mar 1978
D281316	Gary	Nov 1985
D288560	Anderson	Mar 1987
1213732	Bossu	Jan 1917
1777283	Cosgrave	Oct 1930
1960258	Williams	May 1934
2820525	Fountain et al.	Jan 1958
3153783	Whitehead	Oct 1964
4039044	Heil	Aug 1977
4200170	Williams, Jr.	Apr 1980

Foreign Referenced Citations (2)

Number	Date	Country
733450	Feb 1943	DE2
459570	Jun 1913	FRX

Non-Patent Literature Citations (1)

Entry
Elektrotechnische Zeitschrift 8/8/34, vol. 32, p. 787.