IP Library › Granted Patent US 6,797,421
Granted Patent Utility
US 6,797,421 · Confirmation No. 9111

METHOD AND APPARATUS FOR PREVENTING WATER IN FUEL CELL POWER PLANTS FROM FREEZING DURING STORAGE

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2004-09-09 BIB Bibliographic Data Sheet 1 View
2004-07-19 IFEE Issue Fee Payment (PTO-85B) 1 View
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2004-07-01 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
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2004-07-01 FWCLM Index of Claims 1 View
2004-07-01 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2004-07-01 SRFW Search information including classification, databases and other search related notes 1 View
2004-05-18 WFEE Fee Worksheet (SB06) 2 View
2004-05-18 FWCLM Index of Claims 1 View
2004-05-10 A... Amendment/Request for Reconsideration-After Non-Final Rejection 2 View
2004-05-10 CLM Claims 11 View
2004-02-20 CTNF Non-Final Rejection 9 View
2004-02-20 FWCLM Index of Claims 1 View
2004-02-20 SRFW Search information including classification, databases and other search related notes 1 View
2003-12-22 RCEX Request for Continued Examination (RCE) 2 View
2003-12-22 CLM Claims 6 View
2003-12-22 REM Applicant Arguments/Remarks Made in an Amendment 5 View
2003-12-02 CTAV Advisory Action (PTOL-303) 3 View
2003-12-02 FWCLM Index of Claims 1 View
2003-11-14 A.NE Response After Final Action 1 View
2003-11-14 CLM Claims 4 View
2003-11-14 REM Applicant Arguments/Remarks Made in an Amendment 4 View
2003-10-16 CTFR Final Rejection 9 View
2003-05-22 A... Amendment/Request for Reconsideration-After Non-Final Rejection 1 View
2003-05-22 ABST Abstract 1 View
2003-05-22 REM Applicant Arguments/Remarks Made in an Amendment 4 View
2003-04-25 CTNF Non-Final Rejection 8 View
2003-04-25 892 List of references cited by examiner 1 View
2003-04-25 FOR Foreign Reference 9 View
2003-04-25 1449 List of References cited by applicant and considered by examiner 1 View
2003-04-11 SRNT Examiner's search strategy and results 4 View
2002-01-11 TRNA Transmittal of New Application 5 View
2002-01-11 SPEC Specification 13 View
2002-01-11 CLM Claims 3 View
2002-01-11 ABST Abstract 1 View
2002-01-11 DRW Drawings-only black and white line drawings 2 View
2002-01-11 OATH Oath or Declaration filed 4 View
2002-01-11 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2002-01-11 SRFW Search information including classification, databases and other search related notes 1 View
2002-01-11 FWCLM Index of Claims 1 View
2002-01-11 TRNA Transmittal of New Application 5 View
2002-01-11 DRW Drawings-only black and white line drawings 2 View
2002-01-11 SPEC Specification 13 View
2002-01-11 CLM Claims 3 View
2002-01-11 ABST Abstract 1 View
2002-01-11 OATH Oath or Declaration filed 4 View
2002-01-11 WFEE Fee Worksheet (SB06) 1 View
2002-01-11 WFEE Fee Worksheet (SB06) 1 View
2002-01-11 WCLM Claims Worksheet (PTO-2022) 1 View
2002-01-11 IDS Information Disclosure Statement (IDS) Form (SB08) 2 View
2002-01-11 FOR Foreign Reference 56 View
2002-01-11 FOR Foreign Reference 10 View
2002-01-11 FOR Foreign Reference 42 View
2002-01-11 FOR Foreign Reference 50 View
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Quick Facts
Patent No.
US 6,797,421
App. No.
10/043,791
Filed
2002-01-11
Granted
2004-09-28
Pub. No.
US20030134168A1
Art Unit
1745
PTA
0 days