Patent US2948767A successfully refreshed from Google Patents.
US2948767A
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Gas-activated primary cells
Assignee: Union Carbide Corp
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Filing: 1956-08-03
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Granted: 1960-08-09
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Expires: 1976-08-03
Abstract
No abstract record available.
Inventors
- 👤 Richard E Johnson
- 👤 Jr William G Darland
- 👤 Carl A Grulke
- 👤 Nelson C Cahoon
- 👤 Hugh F Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:16
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38; H01M12/00; H01M12/04; H01M12/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DEFERRED ACTION, PRIMARY GALVANIC CELL ADAPTED TO BE ACTIVATED BY A GAS SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE AND SILICON TETRAFLUORIDE, WHICH COMPRISES A CONSUMABLE METAL ANODE SELECTED FROM THE GROUP CONSISTING OF ZINC, NICKEL, CADMIUM, LEAD, ALUMINIUM, IRON, MANGANESE, AND MAGNESIUM, A METAL OXIDE DEPOLARIZER, A BIBULOUS SEPARATOR PERMEABLE TO GAS AND CONTAINING DRY ELECTROLYTE-FORMING MATERIALS ADAPTED TO PROVIDE WATER
Claim 2
Dependent Claim
64 words
A DEFERRED ACTION, PRIMARY GALVANIC CELL ADAPTED TO BE ACTIVATED BY A GAS SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE AND SILICON TETRAFLUORIDE, WHICH COMPRISES A CONSUMABLE METAL ANODE SELECTED FROM THE GROUP CONSISTING OF ZINC, NICKEL, CADMIUM, LEAD, ALUMINIUM, IRON, MANGANESE, AND MAGNESIUM, A METAL OXIDE DEPOLARIZER, A BIBULOUS SEPARATOR PERMEABLE TO GAS AND CONTAINING DRY ELECTROLYTE-FORMING MATERIALS ADAPTED TO PROVIDE WATER
References Cited (Backward Citations)
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Cited
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US2502723A
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US2576266A
Cited
US2615931A
Cited
US2783291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |