IP Library › Granted Patent US 6,665,353
Granted Patent Utility
US 6,665,353 · Confirmation No. 6626

QUADRANT SWITCHING METHOD FOR PHASE SHIFTER

Inventor: John J. Nisbet
Patented Case View Patent ↗
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 Code Description Pages PDF
2009-03-03 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-03-03 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-02-25 PA.. Power of Attorney 6 View
2009-02-25 C.AD Change of Address 2 View
2009-02-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2008-07-09 PA.. Power of Attorney 6 View
2008-07-09 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-10-24 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-06 LET. Miscellaneous Incoming Letter 1 View
2003-08-06 DRW Drawings-only black and white line drawings 10 View
2001-12-18 TRNA Transmittal of New Application 3 View
2001-12-18 SPEC Specification 17 View
2001-12-18 CLM Claims 7 View
2001-12-18 ABST Abstract 1 View
2001-12-18 DRW Drawings-only black and white line drawings 8 View
2001-12-18 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,665,353
App. No.
10/023,785
Filed
2001-12-18
Granted
2003-12-16
Examiner
LE, AMANDA T
Art Unit
2634
PTA
0 days