Patent US3281282A successfully refreshed from Google Patents.
US3281282A
Expired / Lapsed
US
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Process for preparing carbon electrode having noble metal thereon
Assignee: Wyeth Holdings LLC
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Filing: 1963-03-01
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Granted: 1966-10-25
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Barber William Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:56
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
72 words
A PROCESS FOR PREPARING AN IMPROVED ELECTRODE ADAPTED FOR USE IN A FUEL CEL WHICH COMPRISES THE STEPS OF: PREPARING A DISPERSION OF CARBON IN WATER, INCORPORATING A NON-NOBLE METAL SALT THEREIN, REDUCING THE LATTER MIXTURE TO PRECIPITATE NON-NOBLE METAL DIRECTLY ON THE CARBON IN SAID DISPERSION, ADDING A NOBLE METAL COMPOUND THERETO WHEREBY THE NON-NOBLE METAL IS ELECTROLYTEICALLY DISPLACED, AND FORMING AN ENHANCED ELECTRODE FROM THE RESULTANT NOBLE METAL CATALYST-CONTAINING CARBON.
Claim 2
Dependent Claim
72 words
A PROCESS FOR PREPARING AN IMPROVED ELECTRODE ADAPTED FOR USE IN A FUEL CEL WHICH COMPRISES THE STEPS OF: PREPARING A DISPERSION OF CARBON IN WATER, INCORPORATING A NON-NOBLE METAL SALT THEREIN, REDUCING THE LATTER MIXTURE TO PRECIPITATE NON-NOBLE METAL DIRECTLY ON THE CARBON IN SAID DISPERSION, ADDING A NOBLE METAL COMPOUND THERETO WHEREBY THE NON-NOBLE METAL IS ELECTROLYTEICALLY DISPLACED, AND FORMING AN ENHANCED ELECTRODE FROM THE RESULTANT NOBLE METAL CATALYST-CONTAINING CARBON.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |