US3417670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic ram
Assignee: Parker Hannifin Corp
•
Filing: 1966-04-18
•
Granted: 1968-12-24
•
Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Rolf A Madland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:35
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US165472A
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US183638A
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US1325053A
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US884884A
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US1717485A
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US2231242A
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GB771282A
Cited
US2803224A
Cited
US2854958A
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US3046062A
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US3172339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |