IP Library › Granted Patent US 6,479,276
Granted Patent Utility
US 6,479,276 · Confirmation No. 9970

BIOLOGICAL FILTER APPARATUS

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2019-02-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-02-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-02-01 MFEE.C.AD Maintenance Fee Address Change 2 View
2019-02-01 PA.. Power of Attorney 1 View
2019-02-01 N417 Electronic Filing System Acknowledgment Receipt 2 View
2019-02-01 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2019-01-08 N572 Response - Re: Informal Power of Attorney (PTOL-308) 1 View
2018-11-26 PA.. Power of Attorney 2 View
2018-11-26 N417 Electronic Filing System Acknowledgment Receipt 2 View
2018-11-26 TRAN.LET Transmittal Letter 1 View
2001-08-23 TRNA Transmittal of New Application 1 View
2001-08-23 SPEC Specification 8 View
2001-08-23 CLM Claims 3 View
2001-08-23 ABST Abstract 1 View
2001-08-23 DRW Drawings-only black and white line drawings 3 View
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Quick Facts
Patent No.
US 6,479,276
App. No.
09/938,478
Filed
2001-08-23
Granted
2002-11-12
Art Unit
1744
PTA
-57 days