US3527991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servomotor control system in which gain is varied in response to motor temperature
Assignee: Westinghouse Electric Corp
•
Filing: 1968-06-27
•
Granted: 1970-09-08
•
Expires: 1988-06-27
Abstract
No abstract record available.
Inventors
- 👤 Milton Sackin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:04
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1427; H; H02; H02H; H02H7/00; H02H7/08; H02H7/085; H02H7/0852
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2776397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |