IP Library › Granted Patent US 6,813,356
Granted Patent Utility
US 6,813,356 · Confirmation No. 1146

METHOD AND SYSTEM IN A TELEPHONE EXCHANGE SYSTEM

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 Code Description Pages PDF
2004-09-22 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-10-10 TRNA Transmittal of New Application 2 View
2001-10-10 A.PE Preliminary Amendment 9 View
2001-10-10 SPEC Specification 6 View
2001-10-10 CLM Claims 3 View
2001-10-10 ABST Abstract 1 View
2001-10-10 DRW Drawings-only black and white line drawings 2 View
2001-10-10 OATH Oath or Declaration filed 4 View
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Quick Facts
Patent No.
US 6,813,356
App. No.
09/975,499
Filed
2001-10-10
Granted
2004-11-02
Pub. No.
US20020067830A1
Art Unit
2135
PTA
-93 days