US3250645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annular electric cell having central apparatus space
Assignee: Gould National Batteries Inc
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Filing: 1962-10-22
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Granted: 1966-05-10
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Harold E Zahn
- 👤 Jr Raymond Lyle Schenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:57
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/34; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AN ELECTRIC CELL OF THE SEALED, RECHARGEABLE TYPE COMPRISING A CASING HAVING SPACED, TUBULAR, OUTER AND INNER SIDE WALLS AND ANNULAR END WALLS, SAID SIDE WALLS BEING COAXIALLY DISPOSED ONE TO THE OTHER AND SAID INNER SIDE WALL DEFINING A CENTRAL SPACE, SAID SPACE BEING SHAPED AND ARRANGED TO RECEIVE AND ENCLOSE APPARATUS TO BE OPERATED BY POWER FROM THE CELL; A LIQUID ELECTROLYTE IN SAID CELL; A PLURALITY OF FLAT RING SHAPED COMPLETELY ANNULAR POSITIVE AND NEGATIVE PLATES AND SIMILARLY SHAPED SEPARATORS DISPOSED IN A STACK IN SAID CELL; MEANS SEALING SAID CASING AGAINST THE ESCAPE OF GAS THEREFROM AND POSITIVE AND NEGATIVE TERMINAL CONDUCTORS ELECTRICALLY CONNECTED TO THE POSITIVE AND NEGATIVE PLATES RESPECTIVELY.
Claim 2
Dependent Claim
115 words
AN ELECTRIC CELL OF THE SEALED, RECHARGEABLE TYPE COMPRISING A CASING HAVING SPACED, TUBULAR, OUTER AND INNER SIDE WALLS AND ANNULAR END WALLS, SAID SIDE WALLS BEING COAXIALLY DISPOSED ONE TO THE OTHER AND SAID INNER SIDE WALL DEFINING A CENTRAL SPACE, SAID SPACE BEING SHAPED AND ARRANGED TO RECEIVE AND ENCLOSE APPARATUS TO BE OPERATED BY POWER FROM THE CELL; A LIQUID ELECTROLYTE IN SAID CELL; A PLURALITY OF FLAT RING SHAPED COMPLETELY ANNULAR POSITIVE AND NEGATIVE PLATES AND SIMILARLY SHAPED SEPARATORS DISPOSED IN A STACK IN SAID CELL; MEANS SEALING SAID CASING AGAINST THE ESCAPE OF GAS THEREFROM AND POSITIVE AND NEGATIVE TERMINAL CONDUCTORS ELECTRICALLY CONNECTED TO THE POSITIVE AND NEGATIVE PLATES RESPECTIVELY.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |