US3536977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for stopping a motor in response to a torque overload
Assignee: Amtron Inc
•
Filing: 1967-08-21
•
Granted: 1970-10-27
•
Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Virgle E Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/08; H02H7/093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1047557A
Cited
US1849847A
Cited
US2250141A
Cited
US2472526A
Cited
US3358199A
Cited
US3389321A
Cited
US3365615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |