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US2613650A
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Hydraulic servomotor
Assignee: HM Hobson Ltd
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Filing: 1950-05-27
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Granted: 1952-10-14
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Expires: 1970-05-27
Abstract
No abstract record available.
Inventors
- 👤 Mott Lawrence Farnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:57
CPC Classifications
F; F15; F15B; F15B20/00; F15B20/008; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86485
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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |