US3138487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell
Assignee: General Electric Co
•
Filing: 1961-02-28
•
Granted: 1964-06-23
•
Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 William E Tragert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:08
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; B; B01; B01D; B01D19/00; B01D19/02; C; C12; C12N; C12N1/00; C12N1/02; H; H01; H01M; H01M4/00; H01M4/86; H01M4/8605; H01M4/90; H01M4/9041; H01M4/905; H01M4/9058; H01M4/96; H01M8/00; H01M8/10; H01M8/12; H01M8/1213; H01M8/1231; H01M8/1233; H01M8/124; H01M8/1246; H01M8/1253; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/70; H01M2008/1293; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FUEL CELL COMPRISING A SILVER CATHODE, SAID SILVER CATHODE CHARACTERIZED BY BEING IN LIQUID STATE DURING CELL OPERATION AT TEMPERATURES IN THE RANGE OF 1000*C. TO 1200*C., MEANS FOR SUPPLYING A GASEOUS OXIDANT CONTAINING MOLECULAR OXYGEN TO SAID CATHODE, A SOLID STABILIZED ZIRCONIA ELECTROLYTE, ONE SURFACE OF SAID ELECTROLYTE IN DIRECT CONTACT WITH SAID CATHODE, MEANS FOR PROVIDING A CARBONACEOUS FUEL, THE OTHER SURFACE OF SAID ELECTROLYTE IN DIRECT CONTACT WITH SAID SECOND MEANS, SAID ELECTROLYTE AND SAID SECOND MEANS CHARACTERIZED BY BEING IN SOLID STATE DURING CELL OPERATION IN SAID TEMPERATURE RANGE, AND MEANS FOR EXCLUDING MOLECULAR OXYGEN FROM SAID SECOND MEANS DURING CELL OPERATION.
Claim 2
Dependent Claim
107 words
A FUEL CELL COMPRISING A SILVER CATHODE, SAID SILVER CATHODE CHARACTERIZED BY BEING IN LIQUID STATE DURING CELL OPERATION AT TEMPERATURES IN THE RANGE OF 1000*C. TO 1200*C., MEANS FOR SUPPLYING A GASEOUS OXIDANT CONTAINING MOLECULAR OXYGEN TO SAID CATHODE, A SOLID STABILIZED ZIRCONIA ELECTROLYTE, ONE SURFACE OF SAID ELECTROLYTE IN DIRECT CONTACT WITH SAID CATHODE, MEANS FOR PROVIDING A CARBONACEOUS FUEL, THE OTHER SURFACE OF SAID ELECTROLYTE IN DIRECT CONTACT WITH SAID SECOND MEANS, SAID ELECTROLYTE AND SAID SECOND MEANS CHARACTERIZED BY BEING IN SOLID STATE DURING CELL OPERATION IN SAID TEMPERATURE RANGE, AND MEANS FOR EXCLUDING MOLECULAR OXYGEN FROM SAID SECOND MEANS DURING CELL OPERATION.
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 |