Patent US3437892A successfully refreshed from Google Patents.
US3437892A
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Capacitor dielectric compositions and capacitors made therefrom
Assignee: EIDP Inc
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Filing: 1966-12-05
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Granted: 1969-04-08
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Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:33
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/14; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/074; H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2425032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |