US2749487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tantalum electrolytic capacitor
Assignee: General Electric Co
•
Filing: 1953-05-11
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Granted: 1956-06-05
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Jenny
- 👤 Donald H Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
AN ELECTROLYTIC CAPACITOR COMPRISING TANTALUM ELECTRODES AND AN ELECTROLYTE CONSISTING ESSENTIALLY, BY WEIGHT, OF FROM 28 TO 35 PER CENT DISTILLED WATER AND 30 TO 43 PER CENT ETHYLENE GLYCOL, BALANCE POTASSIUM NITRITE.
Claim 2
Dependent Claim
33 words
AN ELECTROLYTIC CAPACITOR COMPRISING TANTALUM ELECTRODES AND AN ELECTROLYTE CONSISTING ESSENTIALLY, BY WEIGHT, OF FROM 28 TO 35 PER CENT DISTILLED WATER AND 30 TO 43 PER CENT ETHYLENE GLYCOL, BALANCE POTASSIUM NITRITE.
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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |