Patent US3146003A successfully refreshed from Google Patents.
US3146003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling unit
Assignee: Individual
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Filing: 1963-03-22
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Granted: 1964-08-25
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Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Ronde John De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:07
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/02; B60D1/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN COMBINATION WITH A HORIZONTAL TRACTOR DRAWBAR MEANS AND A HORIZONTALLY DISPOSED U-SHAPED CLEVIS MOUNTED THEREON, WITH SAID CLEVIS INCLUDING UPPER AND LOWER EYELET PORTIONS ADJACENT THE UPPER AND LOWER SURFACES, RESPECTIVELY, OF SAID DRAWBAR MEANS, SAID EYELET PORTIONS DEFINING APERTURES IN VERTICAL LONGITUDINAL ALIGNMENT WITH AN APERTURE IN SAID DRAWBAR MEANS, AND A LATCH MEANS, SAID LATCH MEANS INCLUDING HORIZONTAL SPACED APART FLANGE ELEMENTS WHICH RECEIVE ONE OF THE EYELET PORTIONS OF SAID CLEVIS THEREBETWEEN, SAID FLANGE ELEMENTS HAVING APERTURES IN ALIGNMENT WITH THE APERTURES IN SAID EYELET PORTIONS AND SAID DRAWBAR MEANS, SAID LATCH MEANS INCLUDING A BACK MEMBER, A PIN EXTENDING COMPLETELY THROUGH THE REGISTERING APERTURES IN SAID DRAWBAR, SAID FLANGE ELEMENT AND BOTH OF SAID EYELET PORTIONS OF SAID CLEVIS, AND A RELEASABLE LOCKING MEANS SECURED TO SAID BACK MEMBER AND RELEASABLY ENGAGING SAID PIN TO LIMIT ITS LONGITUDINAL MOVEMENT THROUGH SAID APERTURES.
Claim 2
Dependent Claim
147 words
IN COMBINATION WITH A HORIZONTAL TRACTOR DRAWBAR MEANS AND A HORIZONTALLY DISPOSED U-SHAPED CLEVIS MOUNTED THEREON, WITH SAID CLEVIS INCLUDING UPPER AND LOWER EYELET PORTIONS ADJACENT THE UPPER AND LOWER SURFACES, RESPECTIVELY, OF SAID DRAWBAR MEANS, SAID EYELET PORTIONS DEFINING APERTURES IN VERTICAL LONGITUDINAL ALIGNMENT WITH AN APERTURE IN SAID DRAWBAR MEANS, AND A LATCH MEANS, SAID LATCH MEANS INCLUDING HORIZONTAL SPACED APART FLANGE ELEMENTS WHICH RECEIVE ONE OF THE EYELET PORTIONS OF SAID CLEVIS THEREBETWEEN, SAID FLANGE ELEMENTS HAVING APERTURES IN ALIGNMENT WITH THE APERTURES IN SAID EYELET PORTIONS AND SAID DRAWBAR MEANS, SAID LATCH MEANS INCLUDING A BACK MEMBER, A PIN EXTENDING COMPLETELY THROUGH THE REGISTERING APERTURES IN SAID DRAWBAR, SAID FLANGE ELEMENT AND BOTH OF SAID EYELET PORTIONS OF SAID CLEVIS, AND A RELEASABLE LOCKING MEANS SECURED TO SAID BACK MEMBER AND RELEASABLY ENGAGING SAID PIN TO LIMIT ITS LONGITUDINAL MOVEMENT THROUGH SAID APERTURES.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |