US2420626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic servomotor with rotating cylinder and fluid transfer means adapted therefor
Assignee: MERIT ENGINEERING Inc
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Filing: 1944-06-21
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Granted: 1947-05-13
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Expires: 1964-06-21
Abstract
No abstract record available.
Inventors
- 👤 Stevenson Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:46
CPC Classifications
F; F16; F16L; F16L39/00; F16L39/04; F16D; F16D25/00; F16D25/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |