IP Library Patent Application 09898487
Patent Application Utility
App. No. 09/898,487 · Confirmation No. 8432

FUEL CELL SYSTEM AND METHOD FOR OPERATING THE FUEL CELL SYSTEM

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
2004-02-20 IFEE Issue Fee Payment (PTO-85B) 2 View
2004-02-20 PA.. Power of Attorney 9 View
2004-02-20 LET. Miscellaneous Incoming Letter 1 View
2001-07-05 TRNA Transmittal of New Application 1 View
2001-07-05 SPEC Specification 7 View
2001-07-05 CLM Claims 3 View
2001-07-05 ABST Abstract 1 View
2001-07-05 DRW Drawings-only black and white line drawings 3 View
2001-07-05 OATH Oath or Declaration filed 2 View
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Quick Facts
App. No.
09/898,487
Filed
2001-07-05
Granted
2004-04-20
Pub. No.
US20020031689A1
Art Unit
1745
PTA
0 days