US3554059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable governor control
Assignee: Caterpillar Inc
•
Filing: 1968-09-06
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Granted: 1971-01-12
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Expires: 1988-09-06
Abstract
Abstract VARIABLE CONTROL APPARATUS WHICH IS RESPONSIVE TO DRIVE RATIO SELECTION OF A TRANSMISSION FOR ADJUSTING THE SETTING OF AN ENGINE GOVERNOR AND THUS VARYING NORMAL ENGINE POWER.
Inventors
- 👤 John H Parks
- 👤 Robert H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:24
CPC Classifications
F; F02; F02D; F02D1/00; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02D2700/0284; F02D2700/0289
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |