IP Library Patent Application 10003603
Patent Application Utility
App. No. 10/003,603 · Confirmation No. 4717

METHOD AND APPARATUS FOR AN IMPROVED ECHO CANCELLER

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Code Description Pages PDF
2004-05-08 IFEE Issue Fee Payment (PTO-85B) 2 View
2001-10-31 TRNA Transmittal of New Application 2 View
2001-10-31 SPEC Specification 21 View
2001-10-31 CLM Claims 7 View
2001-10-31 ABST Abstract 1 View
2001-10-31 DRW Drawings-only black and white line drawings 5 View
2001-10-31 OATH Oath or Declaration filed 2 View
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Quick Facts
App. No.
10/003,603
Filed
2001-10-31
Granted
2004-06-15
Pub. No.
US20030081762A1
Examiner
PHAM, TUAN
Art Unit
2643
PTA
0 days