IP Library Patent Application 09909253
Patent Application Utility Small
App. No. 09/909,253 · Confirmation No. 9834

FAN FLOW SENSOR FOR PROTON EXCHANGE MEMBRANE ELECTROLYSIS CELL

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Code Description Pages PDF
2003-09-24 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-09-10 OATH Oath or Declaration filed 14 View
2001-07-19 TRNA Transmittal of New Application 5 View
2001-07-19 SPEC Specification 9 View
2001-07-19 CLM Claims 4 View
2001-07-19 ABST Abstract 1 View
2001-07-19 DRW Drawings-only black and white line drawings 4 View
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Quick Facts
App. No.
09/909,253
Filed
2001-07-19
Granted
2003-11-25
Pub. No.
US20020023834A1
Art Unit
1742
PTA
-77 days