IP Library › Granted Patent US 6,816,578
Granted Patent Utility
US 6,816,578 · Confirmation No. 9396

EFFICIENT INSTANT MESSAGING USING A TELEPHONY INTERFACE

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2019-09-23 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2013-05-20 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-05-20 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-04-09 PA.. Power of Attorney 2 View
2013-04-09 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2013-04-09 N417 Electronic Filing System Acknowledgment Receipt 2 View
2004-08-23 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-08-23 LET. Miscellaneous Incoming Letter 1 View
2004-08-23 C.AD Change of Address 1 View
2002-01-24 TRNA Transmittal of New Application 2 View
2002-01-24 DRW Drawings-only black and white line drawings 11 View
2001-11-27 TRNA Transmittal of New Application 4 View
2001-11-27 SPEC Specification 20 View
2001-11-27 CLM Claims 7 View
2001-11-27 ABST Abstract 1 View
2001-11-27 DRW Drawings-only black and white line drawings 11 View
2001-11-27 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,816,578
App. No.
09/995,113
Filed
2001-11-27
Granted
2004-11-09
Examiner
CHOW, MING
Art Unit
2645
PTA
-30 days