Patent US2463316A successfully refreshed from Google Patents.
US2463316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline dry cell with permanganate cathode
Assignee: Individual
•
Filing: 1945-01-29
•
Granted: 1949-03-01
•
Expires: 1965-01-29
Abstract
No abstract record available.
Inventors
- 👤 Ruben Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:49
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/5825; H01M6/00; H01M6/04; H01M6/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US298175A
Cited
US691611A
Cited
US1090763A
Cited
US1147753A
Cited
GB191516471A
Cited
US1338412A
Cited
GB163744A
Cited
US1454943A
Cited
US1611153A
Cited
GB320916A
Cited
US1874748A
Cited
GB493694A
Cited
US2233593A
Cited
US2307627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |