US2708907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic oscillating vane motor
Assignee: MANSFIELD DEV Inc
•
Filing: 1953-10-28
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Granted: 1955-05-24
•
Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Homer J Shafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12; F15B15/20; F15B15/22; F15B15/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1991634A
Cited
US2164876A
Cited
US2380873A
Cited
US2579711A
Cited
US2613649A
Cited
GB657873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |