US2937219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric current producing cell and method of generating current with same
Assignee: G&WH Corson Inc
•
Filing: 1955-11-14
•
Granted: 1960-05-17
•
Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Minnick Leonard John
- 👤 Presgrave Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:09
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/145; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US625287A
Cited
US1285054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |