IP Library Granted Patent US 6,694,011
Granted Patent Utility
US 6,694,011 · Confirmation No. 8723

METHOD AND SYSTEM FOR RELIABLY DETECTING VOICEBAND SIGNALING TONES

Inventor: Stanley Pietrowicz
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Code Description Pages PDF
2012-02-14 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2012-02-14 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2012-02-04 PA.. Power of Attorney 2 View
2012-02-04 N417 Electronic Filing System Acknowledgment Receipt 2 View
2012-02-04 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2011-05-04 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-05-04 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-04-05 PA.. Power of Attorney 1 View
2011-04-05 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-04-05 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2009-10-30 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-10-30 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-10-23 PA.. Power of Attorney 1 View
2009-10-23 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2009-10-23 C.AD Change of Address 2 View
2009-10-23 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-12-18 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-12-18 LET. Miscellaneous Incoming Letter 1 View
2001-03-30 DRW Drawings-only black and white line drawings 6 View
2001-02-02 TRNA Transmittal of New Application 5 View
2001-02-02 SPEC Specification 9 View
2001-02-02 CLM Claims 3 View
2001-02-02 ABST Abstract 1 View
2001-02-02 DRW Drawings-only black and white line drawings 6 View
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Quick Facts
Patent No.
US 6,694,011
App. No.
09/776,043
Filed
2001-02-02
Granted
2004-02-17
Pub. No.
US20020150233A1
Art Unit
2644
PTA
-62 days