US3159381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting jack
Assignee: Auto Specialties Manufacturing Co
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Filing: 1963-02-04
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Granted: 1964-12-01
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Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Richard S Graafsma
- 👤 Harbor Benton
- 👤 Claude R Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:45
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A LIFTING JACK COMPRISING AN UPSTANDING ELONGATED MEMBER, A LOAD LIFTING ELEMENT MOUNTED FOR MOVEMENT ALONG SAID UPSTANDING MEMBER AND PRESENTING AN OUTWARDLY FACING CLAMPING SURFACE, A CLAMPING MEMBER ASSEMBLED WITH SAID ELEMENT, MEANS PIVOTALLY CONNECTING SAID CLAMPING MEMBER TO SAID ELEMENT, FOR MOVEMENT ABOUT A PREDETERMINED AXIS, SAID CLAMPING MEMBER PRESENTING A SECOND SURFACE IN OPPOSING RELATIONSHIP WITH RESPECT TO SAID FIRST MENTIONED CLAMPING SURFACE, SAID CLAMPING MEMBER INCLUDING A SECTION LOCATED ABOVE SAID AXIS, AND MEANS FOR ENGAGING AND RETAINING A WORKPIECE INCLUDING AN ELONGATED FLEXIBLE FABRIC STRAP EXTENDING OVER SAID SECTION OF SAID CLAMPING MEMBER, SAID STRAP HAVING A FIRST END PORTION EXTENDING DOWNWARDLY FROM SAID SECTION FOR ENGAGEMENT WITH A WORKPIECE AND A SECOND END PORTION EXTENDING DOWNWARDLY FROM SAID SECTION BETWEEN SAID CLAMPING SURFACES, SAID SECOND END PORTION BEING SECURED BETWEEN SAID CLAMPING SURFACES.
Claim 2
Dependent Claim
139 words
A LIFTING JACK COMPRISING AN UPSTANDING ELONGATED MEMBER, A LOAD LIFTING ELEMENT MOUNTED FOR MOVEMENT ALONG SAID UPSTANDING MEMBER AND PRESENTING AN OUTWARDLY FACING CLAMPING SURFACE, A CLAMPING MEMBER ASSEMBLED WITH SAID ELEMENT, MEANS PIVOTALLY CONNECTING SAID CLAMPING MEMBER TO SAID ELEMENT, FOR MOVEMENT ABOUT A PREDETERMINED AXIS, SAID CLAMPING MEMBER PRESENTING A SECOND SURFACE IN OPPOSING RELATIONSHIP WITH RESPECT TO SAID FIRST MENTIONED CLAMPING SURFACE, SAID CLAMPING MEMBER INCLUDING A SECTION LOCATED ABOVE SAID AXIS, AND MEANS FOR ENGAGING AND RETAINING A WORKPIECE INCLUDING AN ELONGATED FLEXIBLE FABRIC STRAP EXTENDING OVER SAID SECTION OF SAID CLAMPING MEMBER, SAID STRAP HAVING A FIRST END PORTION EXTENDING DOWNWARDLY FROM SAID SECTION FOR ENGAGEMENT WITH A WORKPIECE AND A SECOND END PORTION EXTENDING DOWNWARDLY FROM SAID SECTION BETWEEN SAID CLAMPING SURFACES, SAID SECOND END PORTION BEING SECURED BETWEEN SAID CLAMPING SURFACES.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |