US2164755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic battery
Assignee: PERTRIX CHEM FAB AG
•
Filing: 1936-08-10
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Granted: 1939-07-04
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Expires: 1956-08-10
Abstract
No abstract record available.
Inventors
- 👤 Marhenkel Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:13
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/045; C; C07; C07D; C07D277/00; C07D277/02; C07D277/08; C07D277/12; C07D277/18; H01M12/00; H01M12/02; H01M12/04; H01M12/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-07-03 | 1943-01-02 | 1943-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-03 | 1947-01-02 | 1947-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-03 | 1951-01-02 | 1951-07-04 | $7700.00 | Window Closed / Lapsed |