US2379180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic retractor control
Assignee: Vickers Inc
•
Filing: 1940-02-10
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Granted: 1945-06-26
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Expires: 1960-02-10
Abstract
No abstract record available.
Inventors
- 👤 Walter M Pohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:13
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/024; F41; F41A; F41A9/00; F41A9/38; F41A9/39; F41A9/42; F15B2011/0243; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20576; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/329; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/70; F15B2211/77; F15B2211/7716
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-06-25 | 1948-12-25 | 1949-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-25 | 1952-12-25 | 1953-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-25 | 1956-12-25 | 1957-06-26 | $7700.00 | Window Closed / Lapsed |