US2675418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric storage battery and process of manufacture
Assignee: Individual
•
Filing: 1952-03-21
•
Granted: 1954-04-13
•
Expires: 1972-03-21
Abstract
No abstract record available.
Inventors
- 👤 Henry B Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0438; H01M4/044; H01M10/00; H01M10/04; H01M10/0413; H01M4/24; H01M4/64; H01M4/70; H01M4/80; H01M4/801; H01M4/803; H01M50/00; H01M50/20; H01M50/258; H01M2004/026; H01M2004/027; H01M2004/028; H01M4/36; H01M4/48; H01M4/52; H01M50/40; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49792; Y10T29/49826; Y10T29/49888; Y10T428/00; Y10T428/12; Y10T428/12444; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1940385A
Cited
US2254286A
Cited
US2361378A
Cited
US2366402A
Cited
US2561943A
Cited
US2544112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |