Patent US3575714A successfully refreshed from Google Patents.
US3575714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal type primary cell
Assignee: Catalyst Research Corp
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Filing: 1953-08-07
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Granted: 1971-04-20
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Expires: 1973-08-07
Abstract
Abstract 1. A THERMAL, OR DEFERRED ACTION, CELL COMPRISING SPACED CALCIUM AND NICKEL ELECTRODES, AN INORGANIC SALT DISPOSED BETWEEN SAID ELECTRODES, SAID SALT BEING SOLID AND ELECTRICALLY NON-CONDUCTING IN THE CELL AT NORMAL STORAGE TEMPERATURES BUT BECOMING AN ELECTROLYTE IN HTE MOLTEN STATE, AND MEANS CONTAINED IN THE CELL FOR SUPPLYING HEAT TO MELT SAID ELECTROLYTE.
Inventors
- 👤 Owen G Bennett
- 👤 John P Woolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:30
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; F; F24; F24V; F24V30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A THERMAL, OR DEFERRED ACTION, CELL COMPRISING SPACED CALCIUM AND NICKEL ELECTRODES, AN INORGANIC SALT DISPOSED BETWEEN SAID ELECTRODES, SAID SALT BEING SOLID AND ELECTRICALLY NON-CONDUCTING IN THE CELL AT NORMAL STORAGE TEMPERATURES BUT BECOMING AN ELECTROLYTE IN HTE MOLTEN STATE, AND MEANS CONTAINED IN THE CELL FOR SUPPLYING HEAT TO MELT SAID ELECTROLYTE.
Claim 2
Dependent Claim
54 words
A THERMAL, OR DEFERRED ACTION, CELL COMPRISING SPACED CALCIUM AND NICKEL ELECTRODES, AN INORGANIC SALT DISPOSED BETWEEN SAID ELECTRODES, SAID SALT BEING SOLID AND ELECTRICALLY NON-CONDUCTING IN THE CELL AT NORMAL STORAGE TEMPERATURES BUT BECOMING AN ELECTROLYTE IN HTE MOLTEN STATE, AND MEANS CONTAINED IN THE CELL FOR SUPPLYING HEAT TO MELT SAID ELECTROLYTE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |