Patent US3297482A successfully refreshed from Google Patents.
US3297482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon electrode with polytetrafluoroethylene on one side and platinium on the otherside, fuel cell with same and electrodepositing method of preparing same
Assignee: Individual
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Filing: 1963-10-04
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Granted: 1967-01-10
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jon W Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:31
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
THE METHOD OF PREPARING A CARBON ELECTRODE FOR USE IN A FUEL CELL USING AN ACID ELECTROLYTE, SAID METHOD COMPRISING FIRING THE CARBON ELECTRODE IN A CARBON DIOXIDE-AIR ATMOSPHERE, ELECTRODEPOSITING POLYTETRAFLUOROETHYLENE ONTO ONE SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF POLYTETRAFLUOROETHYLENE AND ELECTRODEPOSITING PLATINUM ONTO THE OTHER SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF PLATINUM.
Claim 2
Independent Claim
65 words
THE METHOD OF PREPARING A CARBON ELECTRODE FOR USE IN A FUEL CELL USING AN ACID ELECTROLYTE, SAID METHOD COMPRISING FIRING THE CARBON ELECTRODE IN A CARBON DIOXIDE-AIR ATMOSPHERE, ELECTRODEPOSITING POLYTETRAFLUOROETHYLENE ONTO ONE SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF POLYTETRAFLUOROETHYLENE AND ELECTRODEPOSITING PLATINUM ONTO THE OTHER SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF PLATINUM.
Claim 3
Dependent Claim
163 words
A FUEL CELL UNIT AN ACID ELECTROLYTE, SAID FUEL CELL UNIT COMPRISING AN OXIDIZING ELECTRODE OF PREPARED CARBON AND MEANS FOR PASSING AND OXIDIZING GAS TO AN END FACE OF SAID OXIDIZING ELECTRODE, A REDUCING ELECTRODE OF PREPARED CARBON AND MEANS FOR PASSING A FUEL GAS TO AN END FACE OF SAID REDUCING ELECTRODE, AN ELECTROLYTE CHAMBER FOR ACID ELECTROYTE DISPOSED BETWEEN THE OXIDIZING AND REDUCING ELECTRODE, MEANS FOR PASSING THE ACID ELECTROLYTE INTO ONE END OF SAID ELECTROLYTE CHAMBER, MEANS FOR PASSING A MIXTURE OF ACID ELECTROLYTE AND CELL REACTION PRODUCTS OUT OF THE OTHER END OF SAID ELECTROLYTE CHAMBER, AND WHERE SAID ELECTRODES ARE PREPARED PRIOR TO USE IN THE FUEL CELL BY THE METHOD COMPRISING FIRING THE CARBON ELECTRODE IN A CARBON DIOXIDE-AIR ATMOSPHERE, ELECTRODEPOSITING POLYTETRAFLUOROETHYLENE ONTO ONE SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF POLYTETRAFLUOROETHYLENE AND ELECTRODEPOSITING PLATINUM ONTO THE OTHER SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF PLATINUM.
Claim 4
Dependent Claim
163 words
A FUEL CELL UNIT AN ACID ELECTROLYTE, SAID FUEL CELL UNIT COMPRISING AN OXIDIZING ELECTRODE OF PREPARED CARBON AND MEANS FOR PASSING AND OXIDIZING GAS TO AN END FACE OF SAID OXIDIZING ELECTRODE, A REDUCING ELECTRODE OF PREPARED CARBON AND MEANS FOR PASSING A FUEL GAS TO AN END FACE OF SAID REDUCING ELECTRODE, AN ELECTROLYTE CHAMBER FOR ACID ELECTROYTE DISPOSED BETWEEN THE OXIDIZING AND REDUCING ELECTRODE, MEANS FOR PASSING THE ACID ELECTROLYTE INTO ONE END OF SAID ELECTROLYTE CHAMBER, MEANS FOR PASSING A MIXTURE OF ACID ELECTROLYTE AND CELL REACTION PRODUCTS OUT OF THE OTHER END OF SAID ELECTROLYTE CHAMBER, AND WHERE SAID ELECTRODES ARE PREPARED PRIOR TO USE IN THE FUEL CELL BY THE METHOD COMPRISING FIRING THE CARBON ELECTRODE IN A CARBON DIOXIDE-AIR ATMOSPHERE, ELECTRODEPOSITING POLYTETRAFLUOROETHYLENE ONTO ONE SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF POLYTETRAFLUOROETHYLENE AND ELECTRODEPOSITING PLATINUM ONTO THE OTHER SIDE OF THE CARBON ELECTRODE TO FORM A DEPOSIT CONSISTING ESSENTIALLY OF PLATINUM.
References Cited (Backward Citations)
US3231428A
Cited
US3098762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |