US2658484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle valve operating mechanism
Assignee: Allis Chalmers Corp
•
Filing: 1949-03-29
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Granted: 1953-11-10
•
Expires: 1969-03-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Kenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:12
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/16; F01D21/18; Y; Y10; Y10S; Y10S60/00; Y10S60/907; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1017557A
Cited
US1791249A
Cited
US1931104A
Cited
US2285208A
Cited
US2380705A
Cited
US2530659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |