US3413535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor control utilizing zener diode and integrating means in a loss of load protection system
Assignee: Texaco Inc
•
Filing: 1965-10-15
•
Granted: 1968-11-26
•
Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Hubby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:14
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/08; H02H7/0827
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3324355A
Cited
US2947931A
Cited
US3167686A
Cited
US3078392A
Cited
US3214641A
Cited
US3283236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |