IP Library › Granted Patent US 6,620,980
Granted Patent Utility
US 6,620,980 · Confirmation No. 3166

METHOD FOR RECOVERY OF PHENOL FROM AQUEOUS STREAMS

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2017-01-24 MFEE.C.AD Maintenance Fee Address Change 2 View
2017-01-24 N417 Electronic Filing System Acknowledgment Receipt 2 View
2017-01-24 C.AD Change of Address 2 View
2011-10-19 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-10-19 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-10-06 PA.. Power of Attorney 2 View
2011-10-06 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-10-06 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2003-07-07 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-07 LET. Miscellaneous Incoming Letter 2 View
2002-04-12 TRNA Transmittal of New Application 5 View
2002-04-12 SPEC Specification 6 View
2002-04-12 CLM Claims 2 View
2002-04-12 ABST Abstract 1 View
2002-04-12 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,620,980
App. No.
10/121,996
Filed
2002-04-12
Granted
2003-09-16
Art Unit
1621
PTA
-20 days