US2830237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytes
Assignee: Sprague Electric Co
•
Filing: 1955-07-01
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Granted: 1958-04-08
•
Expires: 1975-07-01
Abstract
No abstract record available.
Inventors
- 👤 Sidney D Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:22
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AN ELECTROLYTIC CAPACITOR HAVING A PLURALITY OF ELECTRODES, ONE OF SAID ELECTRODES BEING A FROMED VALVE METAL, AND A NON-AQUEOUS ELECTROLYTE CONTIGUOUS WITH SAID ELECTRODES COMPRISING A SOLUTE OF THE SALT OF A POLYNITRO SUBSTITUTED PHENOL AND A LOWER ALKYL AMINE DISSOLVED IN A LOWER ALKYL PHOSPHATE.
Claim 2
Dependent Claim
47 words
AN ELECTROLYTIC CAPACITOR HAVING A PLURALITY OF ELECTRODES, ONE OF SAID ELECTRODES BEING A FROMED VALVE METAL, AND A NON-AQUEOUS ELECTROLYTE CONTIGUOUS WITH SAID ELECTRODES COMPRISING A SOLUTE OF THE SALT OF A POLYNITRO SUBSTITUTED PHENOL AND A LOWER ALKYL AMINE DISSOLVED IN A LOWER ALKYL PHOSPHATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |