IP Library › Granted Patent US 6,643,539
Granted Patent Utility
US 6,643,539 · Confirmation No. 9077

ELECTROCARDIOGRAM SYSTEM FOR SYNTHESIZING LEADS AND PROVIDING AN ACCURACY MEASURE

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2022-04-19 C.AD Change of Address 2 View
2022-04-19 N417 Electronic Filing System Acknowledgment Receipt 2 View
2015-05-14 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-05-14 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-05-04 PA.. Power of Attorney 1 View
2015-05-04 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2015-05-04 N417 Electronic Filing System Acknowledgment Receipt 2 View
2004-01-12 PEFN Pre-Exam Formalities Notice 1 View
2004-01-12 PEFN Pre-Exam Formalities Notice 1 View
2003-08-21 PA.. Power of Attorney 1 View
2003-08-21 OATH Oath or Declaration filed 6 View
2001-04-27 TRNA Transmittal of New Application 1 View
2001-04-27 SPEC Specification 21 View
2001-04-27 CLM Claims 5 View
2001-04-27 ABST Abstract 1 View
2001-04-27 DRW Drawings-only black and white line drawings 3 View
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Quick Facts
Patent No.
US 6,643,539
App. No.
09/844,443
Filed
2001-04-27
Granted
2003-11-04
Pub. No.
US20020035333A1
Art Unit
3762
PTA
-16 days