IP Library Granted Patent US 6,643,149
Granted Patent Utility
US 6,643,149 · Confirmation No. 2728

SWITCHING SYSTEM

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2015-04-08 IMIS Miscellaneous Internal Document 1 View
2003-08-05 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-05 LET. Miscellaneous Incoming Letter 9 View
2003-08-05 DRW Drawings-only black and white line drawings 1 View
2003-08-05 PET. Petition Entered 2 View
2003-05-01 LET. Miscellaneous Incoming Letter 5 View
2003-05-01 DRW Drawings-only black and white line drawings 1 View
2001-10-15 TRNA Transmittal of New Application 2 View
2001-10-15 SPEC Specification 10 View
2001-10-15 CLM Claims 3 View
2001-10-15 ABST Abstract 1 View
2001-10-15 DRW Drawings-only black and white line drawings 6 View
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Quick Facts
Patent No.
US 6,643,149
App. No.
09/977,601
Filed
2001-10-15
Granted
2003-11-04
Pub. No.
US20020044472A1
Art Unit
2838
PTA
0 days