Patent US2697737A successfully refreshed from Google Patents.
US2697737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable cadmium dry cell
Assignee: Individual
•
Filing: 1954-03-31
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Granted: 1954-12-21
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Expires: 1974-03-31
Abstract
No abstract record available.
Inventors
- 👤 Monroe B Goldberg
- 👤 Jr Herbert B Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:23
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A RECHARGEABLE CELL COMPRISING AN ELECTRO-CONDUCTIVE CONTAINER, A CATHODE PELLET OF COMPACTED MERCURY OXIDE DISPOSED WITHIN SAID CONTAINER IN CONDUCTIVE RELATION THERETO, AN ABSORBENT BARRIER LAYER CONTAINING AN ALKALINE HYDROXIDE ELECTROLYTE AND DISPOSED IN CONTACT WITH ONE SURFACE OF SAID CATHODE PELLET, AN ANODE PELLET OF COMPRESSED POWDERED CADMIUM SUPERPOSED IN CONTACT WITH SAID BARRIER LAYER, A CLOSURE ELEMENT FOR SAID CONTAINER IN ELECTRICAL CONTACT WITH SAID ANODE PELLET, AND MEANS PROVIDING A SEAL BETWEEN SAID CLOSURE ELEMENT AND SAID CONTAINER OF A CHARACTER TO PROVIDE ELECTRICAL INSULATION THEREBETWEEN.
Claim 2
Dependent Claim
89 words
A RECHARGEABLE CELL COMPRISING AN ELECTRO-CONDUCTIVE CONTAINER, A CATHODE PELLET OF COMPACTED MERCURY OXIDE DISPOSED WITHIN SAID CONTAINER IN CONDUCTIVE RELATION THERETO, AN ABSORBENT BARRIER LAYER CONTAINING AN ALKALINE HYDROXIDE ELECTROLYTE AND DISPOSED IN CONTACT WITH ONE SURFACE OF SAID CATHODE PELLET, AN ANODE PELLET OF COMPRESSED POWDERED CADMIUM SUPERPOSED IN CONTACT WITH SAID BARRIER LAYER, A CLOSURE ELEMENT FOR SAID CONTAINER IN ELECTRICAL CONTACT WITH SAID ANODE PELLET, AND MEANS PROVIDING A SEAL BETWEEN SAID CLOSURE ELEMENT AND SAID CONTAINER OF A CHARACTER TO PROVIDE ELECTRICAL INSULATION THEREBETWEEN.
References Cited (Backward Citations)
FR894554A
Cited
US2636062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |