IP Library › Granted Patent US 6,683,961
Granted Patent Utility Small
US 6,683,961 · Confirmation No. 5620

PROCESS AND APPARATUS FOR ELIMINATING LOUDSPEAKER INTERFERENCE FROM MICROPHONE SIGNALS

Inventor: Dietmar Ruwisch
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2003-12-05 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-12-05 PA.. Power of Attorney 2 View
2001-09-04 TRNA Transmittal of New Application 1 View
2001-09-04 SPEC Specification 8 View
2001-09-04 CLM Claims 6 View
2001-09-04 ABST Abstract 1 View
2001-09-04 DRW Drawings-only black and white line drawings 5 View
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Quick Facts
Patent No.
US 6,683,961
App. No.
09/946,459
Filed
2001-09-04
Granted
2004-01-27
Pub. No.
US20030156723A1
Examiner
MEI, XU
Art Unit
2644
PTA
-70 days