US3342643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell construction
Assignee: Thales SA
•
Filing: 1964-10-09
•
Granted: 1967-09-19
•
Expires: 1984-10-09
Abstract
No abstract record available.
Inventors
- 👤 Bihan Raymond Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:29
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A FUEL CELL ELECTRODE COMPRISING A NICKEL PLATE PROVIDED WITH REGULAR, SUBSTANTIALLY STRAIGHT, TRANSVERSE PORES, THE WALLS OF SAID TRANSVERSE PORES BEING AT LEAST PARTIALLY COVERED WITH A SPONGY ALUMINUM LAYER, SAID LAYER CONTAINING MINOR, NON-TRANSVERSE ORES OF A MEAN DIAMETER MUCH SMALLER THAN THAT OF SAID TRANSVERSE PORES, SAID ELECTRODE COMPRISING A SUBMERGED PORTION FOR CONTACT WITH AN ELECTROLYTE AND A NON-SUBMERGED PORTION, SAID SPONGY LAYER OF THE TRANSVERSE PORES DEFINING A CHANNEL OF SUCH
References Cited (Backward Citations)
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Cited
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GB963767A
Cited
US3248787A
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US3196050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |