US2921974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deferred action type battery
Assignee: Individual
•
Filing: 1943-10-21
•
Granted: 1960-01-19
•
Expires: 1963-10-21
Abstract
No abstract record available.
Inventors
- 👤 Lewis M Mott-Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:16
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A PRIMARY CELL, DEFERRED ACTION TYPE BATTERY HAVING A SEALED CASING AND ELECTRODE ELEMENTS MOUNTED IN SPACED RELATION TO EACH OTHER IN THE CASING TO PROVIDE AN ELECTROLYTE SPACE BETWEEN SAID ELEMENTS, THE COMBINATION OF A FRANGIBLE AMPOULE IN THE CASING, AN ELECTROLYTIC GAS UNDER PRESSURE IN THE AMPOULE, AND MEANS FOR FRACTURING THE AMPOULE TO RELEASE THE GAS THEREFROM WHEREBY THE GAS IS DISPERSED UNDER ITS OWN PRESSURE INTO SAID SPACE AND INTO CO-ACTION WITH THE ELECTRODE ELEMENTS TO ACTIVATE THE BATTERY.
Claim 2
Dependent Claim
84 words
IN A PRIMARY CELL, DEFERRED ACTION TYPE BATTERY HAVING A SEALED CASING AND ELECTRODE ELEMENTS MOUNTED IN SPACED RELATION TO EACH OTHER IN THE CASING TO PROVIDE AN ELECTROLYTE SPACE BETWEEN SAID ELEMENTS, THE COMBINATION OF A FRANGIBLE AMPOULE IN THE CASING, AN ELECTROLYTIC GAS UNDER PRESSURE IN THE AMPOULE, AND MEANS FOR FRACTURING THE AMPOULE TO RELEASE THE GAS THEREFROM WHEREBY THE GAS IS DISPERSED UNDER ITS OWN PRESSURE INTO SAID SPACE AND INTO CO-ACTION WITH THE ELECTRODE ELEMENTS TO ACTIVATE THE BATTERY.
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) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |