US2446397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic circuit for effecting sequential operation of a plurality of positive displacement hydraulic motors of different sizes
Assignee: COLONIAL BROACH CO
•
Filing: 1944-09-25
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Granted: 1948-08-03
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Expires: 1964-09-25
Abstract
No abstract record available.
Inventors
- 👤 Welte Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/16; F15B11/20; Y; Y10; Y10T; Y10T409/00; Y10T409/40; Y10T409/40035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2102865A
Cited
US2318851A
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US2265800A
Cited
US2287559A
Cited
US2363196A
Cited
US2307544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-03 | 1952-02-02 | 1952-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-03 | 1956-02-02 | 1956-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-03 | 1960-02-02 | 1960-08-03 | $7700.00 | Window Closed / Lapsed |