IP Library › Granted Patent US 6,778,781
Granted Patent Utility
US 6,778,781 · Confirmation No. 5134

HEALTH CHECK ALGORITHM FOR PROTECTION CIRCUIT IN OPTICAL NETWORK

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2004-03-26 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-02-05 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2004-02-05 LET. Miscellaneous Incoming Letter 1 View
2001-06-25 TRNA Transmittal of New Application 5 View
2001-06-25 DRW Drawings-only black and white line drawings 12 View
2001-02-12 TRNA Transmittal of New Application 1 View
2001-02-12 SPEC Specification 24 View
2001-02-12 CLM Claims 2 View
2001-02-12 ABST Abstract 1 View
2001-02-12 DRW Drawings-only black and white line drawings 13 View
2001-02-12 OATH Oath or Declaration filed 7 View
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Quick Facts
Patent No.
US 6,778,781
App. No.
09/781,862
Filed
2001-02-12
Granted
2004-08-17
Pub. No.
US20020114028A1
Examiner
CHAN, ALEX H
Art Unit
2633
PTA
-120 days