US3086751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic jack
Assignee: Siegler Corp
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Filing: 1962-03-26
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Granted: 1963-04-23
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 William A Poznik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:19
CPC Classifications
B; B66; B66F; B66F5/00; B66F5/04; B64; B64F; B64F1/00; B64F1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
A JACK COMPRISING A MOVABLE CARRIAGE, A LIFTING BEAM HAVING A LOAD ENGAGING HEAD FOR LIFTING A LOAD, A FLUID MOTOR PIVOTALLY CONNECTED AT ONE END TO THE CARRIAGE AND PIVOTALLY CONNECTED AT THE OTHER END TO THE LIFTING BEAM, A LINK SPACED FROM THE FLUID MOTOR AND PIVOTALLY CONNECTED AT ONE END TO THE CARRIAGE AND PIVOTALLY CONNECTED AT THE OTHER END TO THE LIFTING BEAM, WHEREBY SAID LIFTING BEAM HAS LONGITUDINAL MOVEMENT WITH RESPECT TO THE CARRIAGE, AND STOP MEANS FOR LIMITING LONGITUDINAL MOVEMENT OF THE LIFTING BEAM, WHEREBY THE LOAD ENGAGING HEAD MAY FOLLOW AN ARC WHICH IS CONVEX WITH RESPECT TO THE JACK.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |