IP Library › Granted Patent US 6,639,978
Granted Patent Utility
US 6,639,978 · Confirmation No. 2606

METHOD FOR DETERMINING AN ENTITY RESPONSIBLE FOR BILLING A CALLED PARTY

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 Code Description Pages PDF
2016-02-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-02-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-02-05 MFEE.C.AD Maintenance Fee Address Change 1 View
2016-02-05 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2016-02-05 PA.. Power of Attorney 1 View
2016-02-05 N417 Electronic Filing System Acknowledgment Receipt 2 View
2013-05-07 OATH Oath or Declaration filed 16 View
2013-05-07 OATH Oath or Declaration filed 16 View
2003-08-08 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-08 LET. Miscellaneous Incoming Letter 1 View
2001-12-17 TRNA Transmittal of New Application 3 View
2001-12-17 SPEC Specification 10 View
2001-12-17 CLM Claims 10 View
2001-12-17 ABST Abstract 1 View
2001-12-17 DRW Drawings-only black and white line drawings 1 View
2001-12-17 OATH Oath or Declaration filed 4 View
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Quick Facts
Patent No.
US 6,639,978
App. No.
10/022,946
Filed
2001-12-17
Granted
2003-10-28
Pub. No.
US20030112934A1
Art Unit
2643
PTA
-90 days