IP Library › Granted Patent US 6,537,444
Granted Patent Utility
US 6,537,444 · Confirmation No. 6630

REPLACEABLE-CARTRIDGE FILTER WITH DATA TRANSMISSION FEATURE

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 Code Description Pages PDF
2014-10-20 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2014-10-20 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2014-07-18 PA.. Power of Attorney 1 View
2014-07-18 N417 Electronic Filing System Acknowledgment Receipt 2 View
2014-07-18 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2001-04-05 TRNA Transmittal of New Application 2 View
2001-04-05 SPEC Specification 17 View
2001-04-05 CLM Claims 4 View
2001-04-05 ABST Abstract 1 View
2001-04-05 DRW Drawings-only black and white line drawings 11 View
2001-04-05 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,537,444
App. No.
09/827,078
Filed
2001-04-05
Granted
2003-03-25
Pub. No.
US20020144937A1
Art Unit
1723
PTA
-64 days