US3412307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current limiting motor control circuit
Assignee: Unisys Corp
•
Filing: 1964-12-08
•
Granted: 1968-11-19
•
Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Julea S Chapline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:43
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; Y; Y10; Y10S; Y10S388/00; Y10S388/90; Y10S388/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2646540A
Cited
US2701327A
Cited
US2666175A
Cited
US2754463A
Cited
US3034032A
Cited
US3250979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |