IP Library › Granted Patent US 6,570,527
Granted Patent Utility
US 6,570,527 · Confirmation No. 7415

CALIBRATION OF DIFFERENTIAL FREQUENCY-DEPENDENT CHARACTERISTICS OF A RADIO COMMUNICATIONS SYSTEM

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 Code Description Pages PDF
2021-05-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2021-05-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2021-05-25 C.AD Change of Address 2 View
2021-05-25 MFEE.C.AD Maintenance Fee Address Change 2 View
2021-05-25 PA.. Power of Attorney 3 View
2021-05-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2021-05-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2021-05-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2012-12-14 C.AD Change of Address 1 View
2012-12-14 N417 Electronic Filing System Acknowledgment Receipt 2 View
2008-12-23 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2008-12-23 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2008-12-10 PA.. Power of Attorney 2 View
2008-12-10 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-09-28 TRNA Transmittal of New Application 6 View
2001-09-28 SPEC Specification 28 View
2001-09-28 CLM Claims 6 View
2001-09-28 ABST Abstract 1 View
2001-09-28 DRW Drawings-only black and white line drawings 4 View
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Quick Facts
Patent No.
US 6,570,527
App. No.
09/967,258
Filed
2001-09-28
Granted
2003-05-27
Art Unit
3662
PTA
-149 days