Patent US2944026A successfully refreshed from Google Patents.
US2944026A
Expired / Lapsed
US
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Electrolytes
Assignee: Sprague Electric Co
•
Filing: 1957-05-14
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Granted: 1960-07-05
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Robinson Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:47
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959130A
Cited
US2084046A
Cited
US2162397A
Cited
US2227146A
Cited
US2153999A
Cited
US2168156A
Cited
US2759132A
Cited
US2680717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |