US2641624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cell
Assignee: Olin Industries Inc
•
Filing: 1950-06-16
•
Granted: 1953-06-09
•
Expires: 1970-06-16
Abstract
No abstract record available.
Inventors
- 👤 Gunnar A F Winckler
- 👤 Otto K Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M4/00; H01M6/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1196611A
Cited
US1286750A
Cited
CH88949A
Cited
US1481145A
Cited
US1631568A
Cited
AU994832A
Cited
US2424149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |