Patent US6423057B1 successfully refreshed from Google Patents.
Patent US6200266B1 successfully refreshed from Google Patents.
US2737541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery electrodes and method of making the same
Assignee: Individual
•
Filing: 1951-02-17
•
Granted: 1956-03-06
•
Expires: 1971-02-17
Abstract
No abstract record available.
Inventors
- 👤 Roger S Coolidge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:49
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A POSITIVE BATTERY ELECTRODE COMPRISING A NONMETALLIC, POROUS CARBON CARRIER, A THIN NICKEL LINING HAVING BEEN CONTINUOUSLY DEPOSITED OVER SUBSTANTIALLY ALL OF THE INTERNAL SURFACES OF THE PORES OF SAID CARRIER, AND NICKEL HYDROXIDE PLATED ON TO THE SAID LINED SURFACES AS BATTERY ACTIVE MATERIAL.
Claim 2
Dependent Claim
45 words
A POSITIVE BATTERY ELECTRODE COMPRISING A NONMETALLIC, POROUS CARBON CARRIER, A THIN NICKEL LINING HAVING BEEN CONTINUOUSLY DEPOSITED OVER SUBSTANTIALLY ALL OF THE INTERNAL SURFACES OF THE PORES OF SAID CARRIER, AND NICKEL HYDROXIDE PLATED ON TO THE SAID LINED SURFACES AS BATTERY ACTIVE MATERIAL.
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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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |