IP Library Granted Patent US 6,438,970
Granted Patent Utility
US 6,438,970 · Confirmation No. 3461

APPARATUS METHODS AND COMPOSITIONS FOR PLACING ADDITIVE FLUIDS INTO A REFRIGERANT CIRCUIT

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2020-01-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
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2020-01-14 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2020-01-14 N417 Electronic Filing System Acknowledgment Receipt 2 View
2019-02-06 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-02-06 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2019-01-25 PA.. Power of Attorney 1 View
2019-01-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2019-01-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2018-06-13 MFEE.C.AD Maintenance Fee Address Change 1 View
2018-06-13 N417 Electronic Filing System Acknowledgment Receipt 2 View
2015-10-16 SES.LOSS.ELC Notification of loss of entitlement to small entity status via Patent Application Information Retrieval (PAIR) 1 View
2015-08-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-08-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-08-05 PA.. Power of Attorney 1 View
2015-08-05 R3.73 Assignee showing of ownership per 37 CFR 3.73 4 View
2015-08-05 N417 Electronic Filing System Acknowledgment Receipt 2 View
2015-08-05 PA.. Power of Attorney 1 View
2001-09-28 TRNA Transmittal of New Application 1 View
2001-09-28 SPEC Specification 17 View
2001-09-28 CLM Claims 4 View
2001-09-28 ABST Abstract 1 View
2001-09-28 DRW Drawings-only black and white line drawings 2 View
2001-09-28 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,438,970
App. No.
09/965,749
Filed
2001-09-28
Granted
2002-08-27
Pub. No.
US20020124578A1
Art Unit
3744
PTA
0 days