US2424958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of electrodepositing a manganese dioxide compound
Assignee: Dorr Co
•
Filing: 1943-08-31
•
Granted: 1947-08-05
•
Expires: 1963-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert F Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
C; C22; C22B; C22B47/00; C25; C25B; C25B1/00; C25B1/01; C25B1/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1322000A
Cited
US1167700A
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US1278308A
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US1874827A
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US2299428A
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US2348742A
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US2340188A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |