US2932153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic capacitor and method of making
Assignee: Sprague Electric Co
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Filing: 1957-07-29
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Granted: 1960-04-12
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Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Walter J Bernard
- 👤 Sidney D Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:50
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0032; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AN ELECTROLYTIC CAPACITOR HAVING ANODE AND CATHODE ELECTRODES IN CONTACT WITH AN ELECTROLYTE, THE ELECTROLYTE CONSISTING ESSENTIALLY OF A SOLUTION OF A LOWER ALIPHATIC AMINE SALT OF A FLUORINATED LOWER ALIPHATIC CARBOXYLIC ACID IN A LOWER ALIPHATIC ALCOHOL SOLVENT CONTAINING FROM ABOUT 1/4 TO 21/2 PERCENT WATER BASED ON THE WEIGHT OF THE SOLUTION, THE PH OF THE SOLUTION BEING FROM ABOUT 8 TO 9.
Claim 2
Dependent Claim
65 words
AN ELECTROLYTIC CAPACITOR HAVING ANODE AND CATHODE ELECTRODES IN CONTACT WITH AN ELECTROLYTE, THE ELECTROLYTE CONSISTING ESSENTIALLY OF A SOLUTION OF A LOWER ALIPHATIC AMINE SALT OF A FLUORINATED LOWER ALIPHATIC CARBOXYLIC ACID IN A LOWER ALIPHATIC ALCOHOL SOLVENT CONTAINING FROM ABOUT 1/4 TO 21/2 PERCENT WATER BASED ON THE WEIGHT OF THE SOLUTION, THE PH OF THE SOLUTION BEING FROM ABOUT 8 TO 9.
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) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |