US2645474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety control for engine governors
Assignee: Caterpillar Inc
•
Filing: 1947-10-13
•
Granted: 1953-07-14
•
Expires: 1967-10-13
Abstract
No abstract record available.
Inventors
- 👤 Randolph C Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:42
CPC Classifications
F; F01; F01L; F01L1/00; F01L2710/00; F01L2710/003; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1044
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1055834A
Cited
US1996679A
Cited
US2096291A
Cited
US2225234A
Cited
US2290797A
Cited
US2566083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |