US2934681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytes
Assignee: Sprague Electric Co
•
Filing: 1956-06-11
•
Granted: 1960-04-26
•
Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 Sidney D Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:03
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AN ELECTROLYTIC CAPACITOR HAVING A PLURALITY OF ELECTRODES, ONE OF SAID ELECTRODES BEING A FORMED VALVE METAL, AND A NON-AQUEOUS ELECTROLYTE CONTIGUOUS WIT SAID ELECTRODES COMPRISING A SOLUTE OF THE SALT OF A NON-METALLIC CATION AND AN OXIDIZING ANION DISSOLVED IN A STABLE ORGANIC ESTER ACID OF THE GROUP CONSISTING OF PHOSPHORIC, PHOSPHOROUS, PHOSPHINOUS AND PHOSPHONIC ACIDS.
Claim 2
Dependent Claim
57 words
AN ELECTROLYTIC CAPACITOR HAVING A PLURALITY OF ELECTRODES, ONE OF SAID ELECTRODES BEING A FORMED VALVE METAL, AND A NON-AQUEOUS ELECTROLYTE CONTIGUOUS WIT SAID ELECTRODES COMPRISING A SOLUTE OF THE SALT OF A NON-METALLIC CATION AND AN OXIDIZING ANION DISSOLVED IN A STABLE ORGANIC ESTER ACID OF THE GROUP CONSISTING OF PHOSPHORIC, PHOSPHOROUS, PHOSPHINOUS AND PHOSPHONIC ACIDS.
References Cited (Backward Citations)
US1959130A
Cited
US2321997A
Cited
US2566908A
Cited
US2759132A
Cited
US2786165A
Cited
US2830237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |