Patent US2459937A successfully refreshed from Google Patents.
US2459937A
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Hydraulic control system
Assignee: Milacron Inc
•
Filing: 1943-12-02
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Granted: 1949-01-25
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Expires: 1963-12-02
Abstract
No abstract record available.
Inventors
- 👤 Fred A Hassman
- 👤 Ernst Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:18
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/25; F15B2211/255; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303976
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1617460A
Cited
US1919150A
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US2012082A
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US2163764A
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US2070811A
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US2226431A
Cited
US2280392A
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US2330755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |