Patent US3143353A successfully refreshed from Google Patents.
US3143353A
Expired / Lapsed
US
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Control mechanism for spreader
Assignee: Deere and Co
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Filing: 1963-10-21
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Granted: 1964-08-04
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Etlar A Henningsen
- 👤 Maurice J Martens
- 👤 Jr John E Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:02
CPC Classifications
A; A01; A01C; A01C3/00; A01C3/06; A01C3/066; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426; Y10T74/20576; Y10T74/20732; Y10T74/20738
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
142 words
A CONTROL MECHANISM FOR A MATERIAL UNLOADER HAVING FRONT AND REAR ENDS AND COMPOSED OF A BOX-LIKE STRUCURE HAVING A FLOOR, UPRIGHT WALL AT THE FRONT AND SIDES THEREOF, AND A MATERIAL UNLOADING MECHANISM WITH ADJUSTABLE DRIVE MEANS ADJACENT THE REAR END, SAID CONTROL MECHANISM COMPRISING: SUBSTANTIALLY CONTINUOUS TUBE MEANS SUPPORTED ON THE WALLS HAVING A REAR TERMINAL END ADJACENT THE DRIVE MEANS AND EXTENDING FORWARDLY THEREFROM OUTBOARD OF THE WALLS, SAID TUBE MEANS HAVING A FORE-AND-AFT EXTENDING TUBULAR MEMBER PROJECTING FORWARDLY OF THE FRONT WALL; AN ADJUSTING ELEMENT ON THE FORWARD END OF THE TUBULAR MEMBER; A FLEXIBLE ELEMENT DISPOSED WITHIN THE TUBE MEANS; MEANS CONNECTING ONE END OF THE FLEXIBLE ELEMENT TO THE ADJUSTABLE DRIVE MEANS; AND MEANS CONNECTING THE OPPOSITE END OF THE FLEXIBLE ELEMENT TO THE ADJUSTING ELEMENT WHEREBY THE LATTER MAY EFFECT ADJUSTMENT OF THE DRIVE MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |