US2856446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifying secondary cell
Assignee: Remington Arms Co LLC
•
Filing: 1954-06-03
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Granted: 1958-10-14
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Expires: 1974-06-03
Abstract
No abstract record available.
Inventors
- 👤 Mccallum John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:20
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M6/5005; H01M10/00; H01M10/42; H01M10/4235; H01M10/06; H01M10/44; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A SECONDARY CELL COMPRISING, IN A SINGLE UNCOMPARTMENTED CONTAINER: AN ELECTROLYTE; A POSITIVE ELECTRODE IMMERSED IN SAID ELECTROLYTE; A NEGATIVE ELECTRODE COMPRISING A POROUS MATERIAL IMMERSED IN SAID ELECTROLYTE; AND A CHARGING ELECTRODE COMPRISING A METALLIC MEMBER HAVING A RECTIFYING FILM THEREON IMMERSED IN SAID ELECTROLYTE AND EMBEDDED IN SAID POROUS MATERIAL OF SAID NEGATIVE ELECTRODE; SAID CELL BEING CHARGEABLE BY CONNECT-
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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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |