US2416576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat type dry battery
Assignee: Olin Industries Inc
•
Filing: 1943-10-20
•
Granted: 1947-02-25
•
Expires: 1963-10-20
Abstract
No abstract record available.
Inventors
- 👤 Arvel O Franz
- 👤 John M Martinez
- 👤 Morris D Koppelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:08
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US770277A
Cited
US1097910A
Cited
US1464413A
Cited
GB226806A
Cited
US2272969A
Cited
US2307761A
Cited
GB549036A
Cited
US2375875A
Cited
GB554926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-24 | 1950-08-26 | 1951-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-24 | 1954-08-26 | 1955-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-24 | 1958-08-26 | 1959-02-25 | $7700.00 | Window Closed / Lapsed |