Patent US3093394A successfully refreshed from Google Patents.
US3093394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible hitch
Assignee: Deere and Co
•
Filing: 1961-01-03
•
Granted: 1963-06-11
•
Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Jack W Mccollum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:55
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/04; A01B59/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN AN AGRICULTURAL IMPLEMENT ADAPTED TO BE CONNECTED OPTIONALLY WITH A TRACTOR HAVING A DRAWBAR FOR TRAILING IMPLEMENTS OR A TRACTOR HAVING UPPER AND LOWER THREE-POINT HITCH LINKS, THE IMPROVEMENT COMPRISING A CONVERTIBLE HITCH MECHANISM ADAPTING THE IMPLEMENT FOR ATTACHMENT TO EITHER OF SAID TYPES OF TRACTORS, SAID HITCH MECHANISM INCLUDING GENERALLY HORIZONTAL FRAME MEANS FIXED TO THE IMPLEMENT AND EXTENDING FORWARDLY THEREFROM, MEANS FORMING AN A-FRAME PIVOTED TO THE FORWARD PORTION OF SAID GENERALLY HORIZONTAL FRAME MEANS AND SWINGABLE BETWEEN A GENERALLY HORIZONTAL POSITION, GENERALLY COPLANAR WITH SAID FRAME MEANS, AND A GENERALLY VERTICAL POSITION, MEANS ON THE GENERALLY APICAL PORTION OF SAID A-FRAME TO RECEIVE THE UPPER OF SAID HITCH LINKS WHICH EXTENDS FORWARDLY WHEN THE A-FRAME IS IN ITS VERTICAL POSITION, MEANS ON THE FORWARD PORTION OF SAID HORIZONTAL FRAME MEANS TO RECEIVE THE LOWER OF SAID HITCH LINKS, AND MEANS FIXING SAID A-FRAME IN EITHER OF ITS POSITIONS.
Claim 2
Dependent Claim
152 words
IN AN AGRICULTURAL IMPLEMENT ADAPTED TO BE CONNECTED OPTIONALLY WITH A TRACTOR HAVING A DRAWBAR FOR TRAILING IMPLEMENTS OR A TRACTOR HAVING UPPER AND LOWER THREE-POINT HITCH LINKS, THE IMPROVEMENT COMPRISING A CONVERTIBLE HITCH MECHANISM ADAPTING THE IMPLEMENT FOR ATTACHMENT TO EITHER OF SAID TYPES OF TRACTORS, SAID HITCH MECHANISM INCLUDING GENERALLY HORIZONTAL FRAME MEANS FIXED TO THE IMPLEMENT AND EXTENDING FORWARDLY THEREFROM, MEANS FORMING AN A-FRAME PIVOTED TO THE FORWARD PORTION OF SAID GENERALLY HORIZONTAL FRAME MEANS AND SWINGABLE BETWEEN A GENERALLY HORIZONTAL POSITION, GENERALLY COPLANAR WITH SAID FRAME MEANS, AND A GENERALLY VERTICAL POSITION, MEANS ON THE GENERALLY APICAL PORTION OF SAID A-FRAME TO RECEIVE THE UPPER OF SAID HITCH LINKS WHICH EXTENDS FORWARDLY WHEN THE A-FRAME IS IN ITS VERTICAL POSITION, MEANS ON THE FORWARD PORTION OF SAID HORIZONTAL FRAME MEANS TO RECEIVE THE LOWER OF SAID HITCH LINKS, AND MEANS FIXING SAID A-FRAME IN EITHER OF ITS POSITIONS.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |