US2848526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intercell seal for multiple cell battery structures
Assignee: Union Carbide Corp
•
Filing: 1953-06-12
•
Granted: 1958-08-19
•
Expires: 1973-06-12
Abstract
No abstract record available.
Inventors
- 👤 John V Franquemont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:41
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M6/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US645547A
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GB122697A
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US1720808A
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GB423165A
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US2272969A
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GB564264A
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US2416576A
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US2483983A
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US2632784A
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |