US2597117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous electrolyte for primary galvanic cell
Assignee: Union Carbide Corp
•
Filing: 1948-12-28
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Granted: 1952-05-20
•
Expires: 1968-12-28
Abstract
No abstract record available.
Inventors
- 👤 Erwin A Schumacher
- 👤 Paul S Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:08
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/045; H01M12/00; H01M12/02; H01M12/04; H01M12/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN AQUEOUS ELECTROLYTE FOR A PRIMARY GALVANIC CELL, WHICH ELECTROLYTE CONTAINS FOR 1000 GRAMS OF WATER 275 TO 450 GRAMS OF SODIUM HYDROXIDE, UP TO 125 GRAMS OF ZINC OXIDE, AND 20 TO 50 GRAMS OF STARCH.
Claim 2
Dependent Claim
37 words
AN AQUEOUS ELECTROLYTE FOR A PRIMARY GALVANIC CELL, WHICH ELECTROLYTE CONTAINS FOR 1000 GRAMS OF WATER 275 TO 450 GRAMS OF SODIUM HYDROXIDE, UP TO 125 GRAMS OF ZINC OXIDE, AND 20 TO 50 GRAMS OF STARCH.
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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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |