US3091907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural implements
Assignee: Patent Concern NV
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Filing: 1960-02-26
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Granted: 1963-06-04
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Expires: 1980-02-26
Abstract
No abstract record available.
Inventors
- 👤 Lely Cornelis Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:40
CPC Classifications
A; A01; A01D; A01D78/00; A01D78/08; A01D78/14; A01D78/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
AN IMPLEMENT COMPRISING A FRAME, GROUND WORKING MEANS COUPLED TO SAID FRAME FOR PERFORMING GROUND WORKING OPERATIONS DURING MOVEMENT OF THE IMPLEMENT, A DRAW BAR HAVING OPPOSITE ENDS, CONNECTING MEANS CONNECTING ONE OF SAID ENDS OF SAID DRAW BAR AND SAID FRAME AND DEFINING A VERTICALLY INCLINED PIVOT AXIS THEREBETWEEN, AND MEANS COUPLED TO THE OTHER END OF SAID DRAW BAR TO MAINTAIN THE SAME AT A SUBSTANTIALLY CONSTANT ELEVATION SO THAT ANGULAR MOVEMENT OF SAID DRAW BAR CAUSES VERTICAL DISPLACEMENT OF SAID CONNECTING MEANS.
Claim 2
Dependent Claim
85 words
AN IMPLEMENT COMPRISING A FRAME, GROUND WORKING MEANS COUPLED TO SAID FRAME FOR PERFORMING GROUND WORKING OPERATIONS DURING MOVEMENT OF THE IMPLEMENT, A DRAW BAR HAVING OPPOSITE ENDS, CONNECTING MEANS CONNECTING ONE OF SAID ENDS OF SAID DRAW BAR AND SAID FRAME AND DEFINING A VERTICALLY INCLINED PIVOT AXIS THEREBETWEEN, AND MEANS COUPLED TO THE OTHER END OF SAID DRAW BAR TO MAINTAIN THE SAME AT A SUBSTANTIALLY CONSTANT ELEVATION SO THAT ANGULAR MOVEMENT OF SAID DRAW BAR CAUSES VERTICAL DISPLACEMENT OF SAID CONNECTING MEANS.
References Cited (Backward Citations)
BE532560A
Cited
FR1095043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |