Patent US3376050A successfully refreshed from Google Patents.
US3376050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral drawbar with foldable sections
Assignee: Deere and Co
•
Filing: 1966-08-11
•
Granted: 1968-04-02
•
Expires: 1986-08-11
Abstract
No abstract record available.
Inventors
- 👤 Lohrman William Vinall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:18
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/02; A01B73/04; A01B73/044
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
FOR USE WITH A TRACTOR HAVING A THREE-POINT HITCH, AN INTEGRAL DRAWBAR COMPRISING A MAIN FRAME SECTION, A PAIR OF OUTRIGGER FRAME SECTIONS PIVOTALLY SECURED TO THE SIDES OF THE MAIN FRAME SECTION AND MOVABLE BETWEEN AN EXTENDED HORIZONTAL WORKING POSITION AND A FOLDED TRANSPORT POSITION, A PAIR OF FOLDING LEGS, AND MEANS OPERABLE TO SECURE EACH OF SAID FOLDING LEGS EITHER IN AN OPERATIVE POSITION IN WHICH THE LEG EXTENDS DOWNWARDLY FROM SAID ASSOCIATED OUTRIGGER SECTION TO ENGAGE THE GROUND OR IN AN INOPERATIVE POSITION, THE LEGS BEING OF SUCH LENGTH THAT WHEN THE FOLDING LEGS ARE IN THEIR OPERATIVE POSITION AND THE MAIN FRAME SECTION AND OUTRIGGER SECTIONS ARE IN A RAISED HORIZONTAL POSITION, THAT LOWERING OF THE MAIN FRAME SECTION WILL CAUSE THE OUTRIGGER FRAME SECTIONS TO BECOME PARTIALLY FOLDED.
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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |