US3426249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Donor ion modified batio3 capacitor and process
Assignee: Sprague Electric Co
•
Filing: 1966-08-01
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Granted: 1969-02-04
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Donald M Smyth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3033907A
Cited
US2962452A
Cited
US3036018A
Cited
US3274467A
Cited
US3340074A
Cited
US3268783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |