Patent US2358119A successfully refreshed from Google Patents.
US2980754A
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US
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Cell exhaustion indicator
Assignee: Union Carbide Corp
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Filing: 1959-03-23
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Granted: 1961-04-18
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Reilly
- 👤 William M Mcneill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:02
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M6/5044; H01M50/00; H01M50/10; H01M50/116; H01M50/117; H01M50/119; H01M50/121; H01M50/124; H01M50/126
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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |