US3059159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overspeed protection for adjustable speed drives
Assignee: Westinghouse Electric Corp
•
Filing: 1959-12-10
•
Granted: 1962-10-16
•
Expires: 1979-12-10
Abstract
No abstract record available.
Inventors
- 👤 Reza Syed Kazim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:57
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/08; H02H7/093; H02P; H02P21/00; H02P21/06; H02P21/08; H02P21/09; H02P23/00; H02P23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |