US3414440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gamma manganese dioxide, method of preparing and dry cell type battery employing gamma type manganese dioxide
Assignee: Dow Chemical Co
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Filing: 1964-09-02
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Granted: 1968-12-03
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Expires: 1984-09-02
Abstract
No abstract record available.
Inventors
- 👤 William G Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
C; C01; C01G; C01G45/00; C01G45/02; C01G45/024; H; H01; H01M; H01M4/00; H01M4/02; H01M4/62; H01M4/624; H01M4/625; C01P; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/40; C01P2006/80; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A GAMMA TYPE MANGANESE DIOXIDE CHARACTERIZED BY THE PRESENCE THEREIN OF OCCLUDED MICRON SIZE PARTICLES OF CARBON HAVING A CHAIN-LIKE STRUCTURE.
Claim 2
Dependent Claim
21 words
A GAMMA TYPE MANGANESE DIOXIDE CHARACTERIZED BY THE PRESENCE THEREIN OF OCCLUDED MICRON SIZE PARTICLES OF CARBON HAVING A CHAIN-LIKE STRUCTURE.
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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |