US2970180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline deferred action cell
Assignee: Union Carbide Corp
•
Filing: 1959-06-17
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Granted: 1961-01-31
•
Expires: 1979-06-17
Abstract
No abstract record available.
Inventors
- 👤 Lewis F Urry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:51
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A DEFERRED ACTION ALKALINE DRY CELL WHICH MAY BE ACTIVATED AND UNIFORMLY SELF-HEATED BY THE EXTERNAL ADDITION OF WATER TO FORM A LIQUID ELECTROLYTE, WHICH COMPRISES A CUPPED CONTAINER, AND IN SAID CONTAINER AN ANODE, A CATHODE, A SEPERATOR BETWEEN SAID ANODE AND SAID CATHODE, A HOLLOW CYLINDER OF A CAUSTIC MATERIAL CHOSEN FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE, SODIUM HYDROXIDE, BARIUM HYDROXIDE, CALCIUM HYDROXIDEM CESIUM HYDROXIDE, LITHIUM HYDROXIDE, RUBIDIUM HYDROXIDE AND STRONTIUM HYDROXIDE, A FILM OF A GELLING AGENT BETWEEN SAID ANODE AND SAID HOLLOW CYLINDER CAPABLE OF ABSORBING AND IMMOBILIZING SAID LIQUID ELECTROLYTE ON ACTIVATION OF SAID CELL, AND A GAS AND LIQUID TIGHT CLOSURE FOR SAID CONTAINER WHICH MAY BE PARTIALLY REMOVED TO ALLOW FOR THE ADDITION OF SAID WATER.
Claim 2
Dependent Claim
124 words
A DEFERRED ACTION ALKALINE DRY CELL WHICH MAY BE ACTIVATED AND UNIFORMLY SELF-HEATED BY THE EXTERNAL ADDITION OF WATER TO FORM A LIQUID ELECTROLYTE, WHICH COMPRISES A CUPPED CONTAINER, AND IN SAID CONTAINER AN ANODE, A CATHODE, A SEPERATOR BETWEEN SAID ANODE AND SAID CATHODE, A HOLLOW CYLINDER OF A CAUSTIC MATERIAL CHOSEN FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE, SODIUM HYDROXIDE, BARIUM HYDROXIDE, CALCIUM HYDROXIDEM CESIUM HYDROXIDE, LITHIUM HYDROXIDE, RUBIDIUM HYDROXIDE AND STRONTIUM HYDROXIDE, A FILM OF A GELLING AGENT BETWEEN SAID ANODE AND SAID HOLLOW CYLINDER CAPABLE OF ABSORBING AND IMMOBILIZING SAID LIQUID ELECTROLYTE ON ACTIVATION OF SAID CELL, AND A GAS AND LIQUID TIGHT CLOSURE FOR SAID CONTAINER WHICH MAY BE PARTIALLY REMOVED TO ALLOW FOR THE ADDITION OF SAID WATER.
References Cited (Backward Citations)
US2896067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |