US2631116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for electrical and electrochemical systems
Assignee: Manganese Battery Corp
•
Filing: 1950-02-01
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Granted: 1953-03-10
•
Expires: 1970-02-01
Abstract
No abstract record available.
Inventors
- 👤 Abraham L Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:21
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A COMPRESSED PELLET OF MANGANESE OXIDE HAVING A MANGANESE OXYGEN RATIO OF AT LEAST 1.8, A DENSITY OF 2.0 TO 2.7 AND HAVING A SPECIFIC RESISTANCE OF LESS THAN 100 OHMS PER CENTIMETER CUBED AND A NEGATIVE TEMPERATURE COEFFICIENT OF ELECTIRCAL RESISTANCE.
Claim 2
Dependent Claim
42 words
A COMPRESSED PELLET OF MANGANESE OXIDE HAVING A MANGANESE OXYGEN RATIO OF AT LEAST 1.8, A DENSITY OF 2.0 TO 2.7 AND HAVING A SPECIFIC RESISTANCE OF LESS THAN 100 OHMS PER CENTIMETER CUBED AND A NEGATIVE TEMPERATURE COEFFICIENT OF ELECTIRCAL RESISTANCE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |