IP Library › Granted Patent US 6,644,492
Granted Patent Utility PCT National Stage
US 6,644,492 · Confirmation No. 7865

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2017-07-25 C.AD.PAIR Change of Address via Patent Application Information Retrieval (PAIR) 1 View
2014-08-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2014-08-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2014-07-28 PA.. Power of Attorney 2 View
2014-07-28 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2014-07-28 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-05-09 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-04-04 PA.. Power of Attorney 7 View
2011-04-04 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2011-04-04 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-08-12 LET. Miscellaneous Incoming Letter 1 View
2003-08-12 DRW Drawings-only black and white line drawings 3 View
2001-08-06 ABST Abstract 1 View
2001-08-06 LET. Miscellaneous Incoming Letter 28 View
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Quick Facts
Patent No.
US 6,644,492
App. No.
09/890,746
Filed
2001-08-06
Granted
2003-11-11
Art Unit
3727
PTA
0 days