IP Library Granted Patent US 6,646,413
Granted Patent Utility
US 6,646,413 · Confirmation No. 6679

FUEL CELL SYSTEM AND METHOD FOR OPERATING THE FUEL CELL SYSTEM

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Code Description Pages PDF
2003-09-15 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-09-15 LET. Miscellaneous Incoming Letter 1 View
2003-09-15 DRW Drawings-only black and white line drawings 1 View
2001-11-14 TRNA Transmittal of New Application 2 View
2001-11-14 SPEC Specification 9 View
2001-11-14 CLM Claims 3 View
2001-11-14 ABST Abstract 1 View
2001-11-14 DRW Drawings-only black and white line drawings 1 View
2001-11-14 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,646,413
App. No.
09/987,444
Filed
2001-11-14
Granted
2003-11-11
Pub. No.
US20020057066A1
Art Unit
2838
PTA
-2 days