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App. No. 10/243,906 · Confirmation No. 4851

HIGH PERFORMANCE SILICON CONDENSER MICROPHONE WITH PERFORATED SINGLE CRYSTAL SILICON BACKPLATE

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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 Code Description Pages PDF
2009-09-23 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-09-23 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-09-15 PA.. Power of Attorney 1 View
2009-09-15 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2009-09-15 N417 Electronic Filing System Acknowledgment Receipt 2 View
2009-04-30 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-10-03 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-09-13 TRNA Transmittal of New Application 1 View
2002-09-13 SPEC Specification 24 View
2002-09-13 CLM Claims 16 View
2002-09-13 ABST Abstract 1 View
2002-09-13 DRW Drawings-only black and white line drawings 13 View
2002-09-13 OATH Oath or Declaration filed 2 View
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Quick Facts
App. No.
10/243,906
Filed
2002-09-13
Granted
2003-12-23
Art Unit
2813
PTA
-2 days