IP Library › Granted Patent US 6,664,857
Granted Patent Utility
US 6,664,857 · Confirmation No. 6365

TWO-STAGE OPERATIONAL AMPLIFIER

Inventor: Udo Ausserlechner
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2019-10-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-10-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-09-25 PA.. Power of Attorney 3 View
2019-09-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2019-09-25 C.AD Change of Address 2 View
2019-09-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2019-09-25 MFEE.C.AD Maintenance Fee Address Change 2 View
2003-10-06 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-04-29 LET. Miscellaneous Incoming Letter 2 View
2003-02-11 TRNA Transmittal of New Application 1 View
2003-02-11 SPEC Specification 20 View
2003-02-11 CLM Claims 4 View
2003-02-11 ABST Abstract 1 View
2003-02-11 DRW Drawings-only black and white line drawings 4 View
2003-02-11 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,664,857
App. No.
10/364,817
Filed
2003-02-11
Granted
2003-12-16
Pub. No.
US20030146792A1
Art Unit
2817
PTA
-4 days