US2843510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode depolarizer for primary cells with acidic electrolytes
Assignee: Individual
•
Filing: 1956-09-05
•
Granted: 1958-07-15
•
Expires: 1976-09-05
Abstract
No abstract record available.
Inventors
- 👤 Leslie D Mcgraw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:28
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/5825; H01M6/00; H01M6/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PRIRAMY CELL COMPRISING AN ANODE; A CATHODE COMPRISING A FINELY GROUND DEPOLARIZER MIXTURE OF MANGANIC PHOSPHATE AND AN INERT ELECTRICALLY CONDUCTIVE MATERIAL; THE MANGANIC PHOSPHATE CONSTITUTING AT LEAST 80% OF THE DEPOLARIZER MIXTURE AND A ACIDIC ELECTROLYTE HAVING A HYDROGEN ION CONCENTRATION (PH) OF LESS THAN ABOUT 5.
Claim 2
Dependent Claim
49 words
A PRIRAMY CELL COMPRISING AN ANODE; A CATHODE COMPRISING A FINELY GROUND DEPOLARIZER MIXTURE OF MANGANIC PHOSPHATE AND AN INERT ELECTRICALLY CONDUCTIVE MATERIAL; THE MANGANIC PHOSPHATE CONSTITUTING AT LEAST 80% OF THE DEPOLARIZER MIXTURE AND A ACIDIC ELECTROLYTE HAVING A HYDROGEN ION CONCENTRATION (PH) OF LESS THAN ABOUT 5.
References Cited (Backward Citations)
US2724688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |