IP Library › Granted Patent US 6,690,894
Granted Patent Utility
US 6,690,894 · Confirmation No. 1399

MULTILEVEL OPTICAL SIGNALS OPTIMIZED FOR SYSTEMS HAVING SIGNAL-DEPENDENT AND SIGNAL-INDEPENDENT NOISES, FINITE TRANSMITTER EXTINCTION RATIO AND INTERSYMBOL INTERFERENCE

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2016-01-22 OATH Oath or Declaration filed 4 View
2012-09-06 PET.AUTO ePetition Request Form 3 View
2012-09-06 WFEE Fee Worksheet (SB06) 2 View
2012-09-06 PET.DEC.AUTO ePetition Grant Letter 1 View
2012-09-06 N417 Electronic Filing System Acknowledgment Receipt 2 View
2008-03-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2008-03-14 PA.. Power of Attorney 3 View
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2008-02-07 LET. Miscellaneous Incoming Letter 1 View
2008-02-07 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-11-17 IFEE Issue Fee Payment (PTO-85B) 4 View
2001-05-14 TRNA Transmittal of New Application 4 View
2001-05-14 SPEC Specification 44 View
2001-05-14 CLM Claims 12 View
2001-05-14 ABST Abstract 1 View
2001-05-14 DRW Drawings-only black and white line drawings 11 View
2001-05-14 OATH Oath or Declaration filed 5 View
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Quick Facts
Patent No.
US 6,690,894
App. No.
09/855,642
Filed
2001-05-14
Granted
2004-02-10
Pub. No.
US20030223762A1
Art Unit
2633
PTA
0 days