US2463675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor-shovel hydraulic dumping control
Assignee: Frank G Hough Co
•
Filing: 1947-01-18
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Granted: 1949-03-08
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Expires: 1967-01-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Beyerstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3417; E02F3/3405; E02F3/3408; E02F3/36; E02F3/42; E02F3/43; E02F3/431; E02F3/432; E02F3/433; E02F9/00; E02F9/20; E02F9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2088986A
Cited
US2201189A
Cited
US2242860A
Cited
US2303852A
Cited
US2412323A
Cited
US2416893A
Cited
US2426544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |