Carter Duncan Corp.
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jan 13, 2009 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 112 Total Citation Count
- Dec 03, 1984 Earliest Filing
- 5 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
7476798 Combined jack and coaxial battery-access cover for a stringed musical instrumentExpiredJul 10, 07Jan 13, 09[G10H]
4672671 Audio frequency signal preamplifier for providing controlled output signalsExpiredDec 03, 84Jun 09, 87[H03G]
4644289 Variable power amplifier for audio frequency signals and methodExpiredDec 03, 84Feb 17, 87[H03F, H03G]
Top Inventors for This Owner
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