IP Library Granted Patent US 6,621,562
Granted Patent Utility Small
US 6,621,562 · Confirmation No. 6090

TIME DOMAIN REFLECTOMETER WITH WIDEBAND DUAL BALANCED DUPLEXER LINE COUPLING CIRCUIT

Inventor: Thomas W. Durston
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2019-06-18 SES.REQ.ELC Assertion of entitlement to small entity status via Patent Application Information Retrieval(PAIR) 1 View
2019-04-24 RETMAIL Mail returned to USPTO as undelivered 2 View
2019-04-15 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-04-15 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-04-10 PA.. Power of Attorney 2 View
2019-04-10 C.AD Change of Address 2 View
2019-04-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2019-04-10 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-06-30 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-06-30 LET. Miscellaneous Incoming Letter 1 View
2003-06-30 C.AD Change of Address 1 View
2001-09-26 TRNA Transmittal of New Application 2 View
2001-09-26 SPEC Specification 13 View
2001-09-26 CLM Claims 4 View
2001-09-26 ABST Abstract 1 View
2001-09-26 DRW Drawings-only black and white line drawings 2 View
2001-09-26 OATH Oath or Declaration filed 1 View
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Quick Facts
Patent No.
US 6,621,562
App. No.
09/967,457
Filed
2001-09-26
Granted
2003-09-16
Pub. No.
US20030058431A1
Art Unit
2877
PTA
-67 days