US2759131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic device
Assignee: Sprague Electric Co
•
Filing: 1953-01-02
•
Granted: 1956-08-14
•
Expires: 1973-01-02
Abstract
No abstract record available.
Inventors
- 👤 Sidney D Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:03
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN ELECTROLYTIC CONDENSER COMPRISING AN OXIDE FILMED ELECTRODE OF A METAL SELECTED FROM THE GROUP TANTALUM AND ALUMINUM, ANOTHER ELECTRODE, AND AN AQUEOUS ELECTROLYTIC SOLUTION CONTAINING A CATION SELECTED FROM THE CLASS CONSISTING OF LITHIUM, SODIUM, AND POTASSIUM, AND AN ANION SELECTED FROM THE CLASS CONSISTING OF ACETATE AND FORMATE IONS, SAID SOLUTION BEING AT LEAST 6 MOLAR IN CONCENTRATION.
Claim 2
Dependent Claim
60 words
AN ELECTROLYTIC CONDENSER COMPRISING AN OXIDE FILMED ELECTRODE OF A METAL SELECTED FROM THE GROUP TANTALUM AND ALUMINUM, ANOTHER ELECTRODE, AND AN AQUEOUS ELECTROLYTIC SOLUTION CONTAINING A CATION SELECTED FROM THE CLASS CONSISTING OF LITHIUM, SODIUM, AND POTASSIUM, AND AN ANION SELECTED FROM THE CLASS CONSISTING OF ACETATE AND FORMATE IONS, SAID SOLUTION BEING AT LEAST 6 MOLAR IN CONCENTRATION.
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |