US2528891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary battery depolarizer and method of making the same
Assignee: Individual
•
Filing: 1945-03-26
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Granted: 1950-11-07
•
Expires: 1965-03-26
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:12
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PRIMARY CELL COMPRISING: AN ANODE; A CATH ODE; A DEPOLARIZER OF SILVER OXIDES FORMED BY ELECTROLYTIC OXIDATION OF A SOLUBLE SILVER SALT IN AN ACID BATH HAVING A PH OF APPROXIMATELY 4, FOLLOWED BY PARTIAL DECOMPOSITION OF THE RESULTING BLACK CRYSTALS TO AN AQUEOUS CAUSTIC SOLUTION WHICH CAUSES GAS EVOLUTION UNTIL SUBSTANTIAL EQUILIBRIUM IS OBTAINED; AND AN ALKALINE ELECTROLYTE DISPERSED THROUGHOUT SAID DEPOLARIZER.
Claim 2
Dependent Claim
64 words
A PRIMARY CELL COMPRISING: AN ANODE; A CATH ODE; A DEPOLARIZER OF SILVER OXIDES FORMED BY ELECTROLYTIC OXIDATION OF A SOLUBLE SILVER SALT IN AN ACID BATH HAVING A PH OF APPROXIMATELY 4, FOLLOWED BY PARTIAL DECOMPOSITION OF THE RESULTING BLACK CRYSTALS TO AN AQUEOUS CAUSTIC SOLUTION WHICH CAUSES GAS EVOLUTION UNTIL SUBSTANTIAL EQUILIBRIUM IS OBTAINED; AND AN ALKALINE ELECTROLYTE DISPERSED THROUGHOUT SAID DEPOLARIZER.
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) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |