IP Library Granted Patent US 6,634,388
Granted Patent Utility PCT National Stage
US 6,634,388 · Confirmation No. 4564

ANNULAR FLUID MANIPULATION IN LINED TUBULAR SYSTEMS

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2013-05-07 C.AD Change of Address 1 View
2013-05-07 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-07-16 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-03-22 LET. Miscellaneous Incoming Letter 62 View
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Quick Facts
Patent No.
US 6,634,388
App. No.
09/744,280
Filed
2001-03-22
Granted
2003-10-21
Art Unit
3752
PTA
0 days