Patent US3306779A successfully refreshed from Google Patents.
US3306779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell electrode and a process for making the same
Assignee: Standard Oil Co
•
Filing: 1965-07-01
•
Granted: 1967-02-28
•
Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Robert J Flannery
- 👤 Sam Ahmad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:52
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A MULTI-LAYER FUEL CELL ELECTRODE SUITABLE FOR USE IN CONJUNCTION WITH AN ELECTROLYTE IN THE DIRECT OXIDATION OF HYDROCARBONS AT LOW TEMPERATURES BELOW ABOUT 300*C., SAID ELECTRODE EXHIBITING CONTROLLED WETTABILITY AND IMPROVED PERFORMANCE AT LOW CATALYST LOADINGS BELOW ABOUT 20 G./FT.2, AND COMPRISING AT LEAST TWO ADJACENT LAYERS CONTAINING A CURRENT COLLECTOR, EACH LAYER BEING COMPOSED OF A COMPRESSED COMBINATION OF PARTICLES OF A NON-WETTABLE, INERT, INSOLUBLE, ACID RESISTANT, POLYMERIC THERMOPLASTIC AND PARTICLES OF WETTABLE CARBON HAVING A SIZE IN THE RANGE OF 10 M.2/G.-200 M.2/G., AT LEAST ONE OF SAID LAYERS BEING WETTABLE BY THE ELECTROLYTE BUT HAVING PORES OF SUFFICIENT SIZE TO PREVENT TOTAL FLOODING OF THE LAYER AND HAVING A WEIGHT RATIO OF THERMOPLASTIC TO CARBON OF ABOUT 5-30:100, SAID ELECTRODE ALSO INCLUDING A CATALYST SUPPORTED ON AT LEAST A PORTION OF THE CARBON PARTICLES IN SAID LAYERS.
Claim 2
Dependent Claim
141 words
A MULTI-LAYER FUEL CELL ELECTRODE SUITABLE FOR USE IN CONJUNCTION WITH AN ELECTROLYTE IN THE DIRECT OXIDATION OF HYDROCARBONS AT LOW TEMPERATURES BELOW ABOUT 300*C., SAID ELECTRODE EXHIBITING CONTROLLED WETTABILITY AND IMPROVED PERFORMANCE AT LOW CATALYST LOADINGS BELOW ABOUT 20 G./FT.2, AND COMPRISING AT LEAST TWO ADJACENT LAYERS CONTAINING A CURRENT COLLECTOR, EACH LAYER BEING COMPOSED OF A COMPRESSED COMBINATION OF PARTICLES OF A NON-WETTABLE, INERT, INSOLUBLE, ACID RESISTANT, POLYMERIC THERMOPLASTIC AND PARTICLES OF WETTABLE CARBON HAVING A SIZE IN THE RANGE OF 10 M.2/G.-200 M.2/G., AT LEAST ONE OF SAID LAYERS BEING WETTABLE BY THE ELECTROLYTE BUT HAVING PORES OF SUFFICIENT SIZE TO PREVENT TOTAL FLOODING OF THE LAYER AND HAVING A WEIGHT RATIO OF THERMOPLASTIC TO CARBON OF ABOUT 5-30:100, SAID ELECTRODE ALSO INCLUDING A CATALYST SUPPORTED ON AT LEAST A PORTION OF THE CARBON PARTICLES IN SAID LAYERS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |