US2747426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine speed control mechanism
Assignee: Caterpillar Inc
•
Filing: 1952-10-16
•
Granted: 1956-05-29
•
Expires: 1972-10-16
Abstract
No abstract record available.
Inventors
- 👤 Ronald R Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:59
CPC Classifications
F; F02; F02D; F02D1/00; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02D2700/0284; F02D2700/0292; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/20492; Y10T74/20576; Y10T74/20582; Y10T74/206; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702980A
Cited
US755852A
Cited
US1381337A
Cited
US1987066A
Cited
US2438683A
Cited
US2548994A
Cited
US2613547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |