US3378752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon controlled rectifier inverter
Assignee: CTS of Canada Ltd
•
Filing: 1965-03-30
•
Granted: 1968-04-16
•
Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert W Naylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3181053A
Cited
US3085190A
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US3229191A
Cited
US3264548A
Cited
US3075136A
Cited
US3226626A
Cited
US3263153A
Cited
US3315146A
Cited
US3305761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |