US3548266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-nickel oxide capacitor
Assignee: Sprague Electric Co
•
Filing: 1968-11-14
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Granted: 1970-12-15
•
Expires: 1988-11-14
Abstract
No abstract record available.
Inventors
- 👤 Franklin D Frantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:51
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA685168A
Cited
US2749489A
Cited
US2720573A
Cited
US3142594A
Cited
US3353124A
Cited
US3424955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |