IP Library › Granted Patent US 6,630,568
Granted Patent Utility
US 6,630,568 · Confirmation No. 7445

METHOD FOR PURIFICATION OF AROMATIC POLYETHERS

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2017-07-19 OATH Oath or Declaration filed 4 View
2014-03-17 OATH Oath or Declaration filed 135 View
2003-08-14 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-03-23 TRNA Transmittal of New Application 1 View
2001-03-23 SPEC Specification 32 View
2001-03-23 CLM Claims 9 View
2001-03-23 ABST Abstract 1 View
2001-03-23 OATH Oath or Declaration filed 3 View
2001-03-23 DRW Drawings-only black and white line drawings 3 View
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Quick Facts
Patent No.
US 6,630,568
App. No.
09/815,583
Filed
2001-03-23
Granted
2003-10-07
Examiner
TRUONG, DUC
Art Unit
1711
PTA
-151 days