US3138490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell
Assignee: General Electric Co
•
Filing: 1963-09-30
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Granted: 1964-06-23
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 William E Tragert
- 👤 Robert L Fullman
- 👤 Ralph E Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:05
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/70; B; B01; B01D; B01D19/00; B01D19/02; C; C12; C12N; C12N1/00; C12N1/02; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; H01; H01M; H01M8/00; H01M8/10; H01M8/12; H01M8/1233; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A FUEL CELL INCLUDING AN ANODE, THE COMBINATION OF A SOLID STABILIZED ZIRCONIA ELECTROLYTE, A SILVER CATHODE IN DIRECT CONTACT WITH ONE SURFACE OF SAID ELECTROLYTE, SAID CATHODE CHARACTERIZED BY BEING IN LIQUID STATE DURING CELL OPERATION, AND MEANS FOR SUPPLYING A GASEOUS OXIDANT CONTAINING MOLECULAR OXYGEN TO SAID SILVER CATHODE.
Claim 2
Dependent Claim
52 words
IN A FUEL CELL INCLUDING AN ANODE, THE COMBINATION OF A SOLID STABILIZED ZIRCONIA ELECTROLYTE, A SILVER CATHODE IN DIRECT CONTACT WITH ONE SURFACE OF SAID ELECTROLYTE, SAID CATHODE CHARACTERIZED BY BEING IN LIQUID STATE DURING CELL OPERATION, AND MEANS FOR SUPPLYING A GASEOUS OXIDANT CONTAINING MOLECULAR OXYGEN TO SAID SILVER CATHODE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |