US2651179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual pressure hydraulic apparatus
Assignee: Allis Chalmers Corp
•
Filing: 1950-09-09
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Granted: 1953-09-08
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Expires: 1970-09-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Blood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
CPC Classifications
F; F16; F16H; F16H39/00; A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/1006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1613753A
Cited
US1912184A
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US2124395A
Cited
US2138969A
Cited
US2232620A
Cited
US2482249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |