US2960558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell
Assignee: Union Carbide Corp
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Filing: 1957-10-09
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Granted: 1960-11-15
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Expires: 1977-10-09
Abstract
No abstract record available.
Inventors
- 👤 Paul A Marsal
- 👤 Kordesch Karl
- 👤 Lewis F Urry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:35
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08; H01M6/085; A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1152; H01M4/00; H01M4/02; H01M4/62; H01M4/628; H01M2300/00; H01M2300/0002; H01M2300/0014
Claims Analysis
Total Claims: 0
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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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |