US2615955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnated electrical condenser
Assignee: AT&T Inc
•
Filing: 1949-12-29
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Granted: 1952-10-28
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Expires: 1969-12-29
Abstract
No abstract record available.
Inventors
- 👤 David A Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20; H01G4/22; H01G4/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
AN ELECTRIC CONDENSER COMPRISING A PAIR OF ELECTRODES SEPARATED BY A PAPER SPACER IMPREGNATED WITH A SOFT PLASTIC GEL OF A FUSIBLE, NORMALLY SOLID HYDROCARBON POLYMER IN A VISCOUS, NORMALLY LIQUID HYDROCARBON POLYMER.
Claim 2
Dependent Claim
33 words
AN ELECTRIC CONDENSER COMPRISING A PAIR OF ELECTRODES SEPARATED BY A PAPER SPACER IMPREGNATED WITH A SOFT PLASTIC GEL OF A FUSIBLE, NORMALLY SOLID HYDROCARBON POLYMER IN A VISCOUS, NORMALLY LIQUID HYDROCARBON POLYMER.
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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |