US3387197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary speed control for an induction motor
Assignee: Allen Bradley Co LLC
•
Filing: 1965-04-30
•
Granted: 1968-06-04
•
Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Reinhard H Paulus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:44
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; H; H02; H02P; H02P27/00; H02P27/02; H02P27/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125711A
Cited
US2608676A
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US2707260A
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US2719255A
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US2722643A
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US2793338A
Cited
US3177419A
Cited
US3127547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |