US3051769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leakproof primary or secondary celland process for manufacturing the same
Assignee: SAFT Societe des Accumulateurs Fixes et de Traction SA
•
Filing: 1960-07-13
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Granted: 1962-08-28
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Expires: 1980-07-13
Abstract
No abstract record available.
Inventors
- 👤 Jammet Jean Firmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:54
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/172; H01M50/174; H01M50/182; H01M6/00; H01M6/04; H01M6/06; H01M6/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A LEAKPROOF CELL COMPRISING A CUP-SHAPED OUTER ELECTRODE, A PLASTIC CASING SURROUNDING SAID CUP-SHAPED OUTER ELECTRODE, SAID CASING HAVING A PERFORATED BOTTOM, PROVIDED WITH A SERRATED PORTION ABOUT THE PERFORATION, THE WALL THICKNESS OF SAID SERRATED PORTION BEING THICKER THAN OTHER PORTIONS OF SAID BOTTOM, A PAIR OF METAL PLATES POSITIONED ON OPPOSITE SIDES OF SAID BOTTOM AND JOINED TOGETHER IN THE PERFORATION, SAID METAL PLATES HAVING PARTS EXTENDING IN SUBSTANTIAL PARALLELISM WITH SAID SERRATED
Claim 2
Dependent Claim
75 words
A LEAKPROOF CELL COMPRISING A CUP-SHAPED OUTER ELECTRODE, A PLASTIC CASING SURROUNDING SAID CUP-SHAPED OUTER ELECTRODE, SAID CASING HAVING A PERFORATED BOTTOM, PROVIDED WITH A SERRATED PORTION ABOUT THE PERFORATION, THE WALL THICKNESS OF SAID SERRATED PORTION BEING THICKER THAN OTHER PORTIONS OF SAID BOTTOM, A PAIR OF METAL PLATES POSITIONED ON OPPOSITE SIDES OF SAID BOTTOM AND JOINED TOGETHER IN THE PERFORATION, SAID METAL PLATES HAVING PARTS EXTENDING IN SUBSTANTIAL PARALLELISM WITH SAID SERRATED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |