US3276976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a fuel cell electrode
Assignee: Air Products and Chemicals Inc
•
Filing: 1962-02-13
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Granted: 1966-10-04
•
Expires: 1982-02-13
Abstract
No abstract record available.
Inventors
- 👤 Andre L Juliard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:14
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8825; H01M4/8853; C; C25; C25D; C25D5/00; C25D5/18; H01M4/02; H01M4/06; H01M4/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10S; Y10S204/00; Y10S204/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THE METHOD OF FORMING A FUEL CELL ELECTRODE WHICH COMPRISES THE STEP OF: SUPPORTING AN ELECTROCONDUCTIVE BASE MEMBER, AS A CATHODIC ELECTRODE TO BE PLATED, AND A BODY OF PALTINUM, AS AN ANODIC PLATING ELECTRODE, IN SPACED RELATIONSHIP WITHIN AN ELECTROLYTIC PLATING SOLUTION COMPATIBLE WITH SAID ELECTRODES AND CONTAINING A PLATINUM SALT, AND IMPOSING UPON SAID ELECTRODES OR A TOTAL PERIOD OF 0.2-5.0 MINUTES A PLUSHING ELECTRIC CURRENT CHARACTERIZED BY (A) DISCONTINUOUS CURRENT FLOW, (B) A FREQUENCY IN THE RANGE OF 10-200 CYCLES/SECOND, (C) A PULSE DURATION 0.1-2.0 MILLISECONDS, (D) AN OVERVOLTAGE OF 1-15 VOLTS AT THE CATHODE, (E) AND A CURRENT DENSITY OF 1-6 AMPS/CM.2.
Claim 2
Independent Claim
106 words
THE METHOD OF FORMING A FUEL CELL ELECTRODE WHICH COMPRISES THE STEP OF: SUPPORTING AN ELECTROCONDUCTIVE BASE MEMBER, AS A CATHODIC ELECTRODE TO BE PLATED, AND A BODY OF PALTINUM, AS AN ANODIC PLATING ELECTRODE, IN SPACED RELATIONSHIP WITHIN AN ELECTROLYTIC PLATING SOLUTION COMPATIBLE WITH SAID ELECTRODES AND CONTAINING A PLATINUM SALT, AND IMPOSING UPON SAID ELECTRODES OR A TOTAL PERIOD OF 0.2-5.0 MINUTES A PLUSHING ELECTRIC CURRENT CHARACTERIZED BY (A) DISCONTINUOUS CURRENT FLOW, (B) A FREQUENCY IN THE RANGE OF 10-200 CYCLES/SECOND, (C) A PULSE DURATION 0.1-2.0 MILLISECONDS, (D) AN OVERVOLTAGE OF 1-15 VOLTS AT THE CATHODE, (E) AND A CURRENT DENSITY OF 1-6 AMPS/CM.2.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |