US3799808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making porous electrode plates
Assignee: Viridian Inc Canada
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Filing: 1971-10-07
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Granted: 1974-03-26
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Expires: 1991-10-07
Abstract
Abstract AN ELONGATED, SELF-SUPPORTING POROUS METAL PLATE IS PRODUCED BY A PROCESS OF APPLYING A LAYER OF SLURRY OF NICKEL POWDER VOLATILE LIQUID AND ORGANIC BINDER TO A FLEXIBLE CARRIER STRIP WHICH IS CAPABLE OF BEING DECOMPOSED AT SINTERING TEMPERATURE AND THEN DRYING, COINING, AND SINTERING THE LAYER OF SLURRY AND DECOMPOSING THE CARRIER.
Inventors
- 👤 H Hancock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:50
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0402; H01M4/0404; B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/1103; B22F3/1109; B22F5/00; B22F5/006; H01M4/0416; H01M4/043; H01M4/0435; H01M4/0471; H01M4/36; H01M4/60; H01M4/602; H01M4/606; H01M4/608; H01M4/64; H01M4/70; H01M4/80; H01M4/801; H01M4/803; B22F2998/00; B22F2998/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
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References Cited (Backward Citations)
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |