US2947931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control systems
Assignee: Texaco Inc
•
Filing: 1956-12-24
•
Granted: 1960-08-02
•
Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Laurence M Hubby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
H; H02; H02P; H02P29/00; H02P29/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1199936A
Cited
US1983429A
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US2180400A
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US2498057A
Cited
US2456456A
Cited
US2687693A
Cited
US2754763A
Cited
US2688268A
Cited
US2774929A
Cited
US2856574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |