IP Library › Granted Patent US 6,692,857
Granted Patent Utility
US 6,692,857 · Confirmation No. 5081

PROCESS FOR THE PRODUCTION OF A COMPOSITE MEMBRANE

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2003-11-19 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-10-18 TRNA Transmittal of New Application 2 View
2001-10-18 A.PE Preliminary Amendment 3 View
2001-10-18 A.PE Preliminary Amendment 2 View
2001-10-18 SPEC Specification 3 View
2001-10-18 SPEC Specification 3 View
2001-10-18 CLM Claims 2 View
2001-10-18 ABST Abstract 1 View
2001-10-18 OATH Oath or Declaration filed 1 View
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Quick Facts
Patent No.
US 6,692,857
App. No.
09/978,667
Filed
2001-10-18
Granted
2004-02-17
Pub. No.
US20020022169A1
Art Unit
1745
PTA
0 days