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US2818706A
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Hydraulic system
Assignee: Jeffrey Manufacturing Co
•
Filing: 1953-04-15
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Granted: 1958-01-07
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Expires: 1973-04-15
Abstract
No abstract record available.
Inventors
- 👤 Fred J Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:33
CPC Classifications
F; F16; F16H; F16H39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US958212A
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US991646A
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US1790203A
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US2105824A
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US2110428A
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US2385069A
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US2555427A
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US2621479A
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US2687011A
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US2632999A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |