US3154164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-highway tractor
Assignee: COCHRAN EQUIPMENT CO
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Filing: 1961-10-12
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Granted: 1964-10-27
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Hugh H Shaw
- 👤 Thomas R Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:21
CPC Classifications
B; B60; B60B; B60B27/00; B60B27/0015; B60B27/0021; B60B27/0026; B60B27/06; B60B27/065; B60B35/00; B60B35/001; B60B35/003; B60B35/02; B60B35/10; B60B35/1009; B60B35/1018; B60B35/1072; B60B35/109; B60G; B60G9/00; B60G9/02; B60K; B60K17/00; B60K17/04; B60K17/10; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/10; B62D11/14; B62D11/18; B62D49/00; B62D49/06; B62D49/0607; B62D49/0657; B62D49/0678; B60B2310/00; B60B2310/20; B60B2310/202; B60B2310/30; B60B2310/305; B60B2380/00; B60B2380/10; B60B2380/14; B60B2900/00; B60B2900/10; B60B2900/112; B60G2300/00; B60G2300/08; B60G2300/082; B60G2300/40; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221; Y; Y10; Y10S; Y10S180/00; Y10S180/90; Y10S180/906
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
198 words
A HYDRAULIC TRACTOR ADAPTED FOR OFF-HIGHWAY USE WHICH COMPRISES, A TRACTOR FRAME, A PAIR OF WHEEL STRUTS ON EACH SIDE OF SAID FRAME, A GROUND ENGAGING WHEEL ON THE LOWER END OF EACH OF SAID STRUTS WITH THE TWO WHEELS ON EACH SIDE OF SAID FRAME POSITIONED TO TRACK EACH OTHER WHEN THEY ROLL RESPONSIVE TO MOVEMENT OF SAID FRAME, A HYDRAULIC MOTOR INTERCONNECTING EACH OF SAID WHEELS WITH THE STRUT ON WHICH IT IS MOUNTED FOR EFFECTING ROTATION OF SAID WHEEL RESPONSIVE TO DELIVERY OF FLUID UNDER PRESSURE TO THE MOTOR, POWER MEANS MOUNTED ON SAID FRAME AND INCLUDING A PUMP FOR SUPPLYING FLUID UNDER PRESSURE, FLEXIBLE CONDUIT MEANS CONNECTING SAID PUMP TO SAID MOTORS, ADJUSTABLE CONNECTING MEANS CONNECTING SAID STRUTS TO SAID FRAME FOR MOVING SAID PAIRS OF STRUTS TOWARD AND AWAY FROM EACH OTHER TO ADJUST THE WIDTH OF THE WHEEL BASE OF SAID TRACTOR, AND ADJUSTABLE MEANS FORMING A PART OF SAID STRUTS FOR CHANGING THE LENGTHS OF SAID STRUTS FOR ADJUSTING THE GROUND CLEARANCE OF SAID FRAME ABOVE THE GROUND, WHEREBY SAID TRACTOR MAY BE OPERATED STRADDLING DIFFERENT ROW CROPS WHICH GROW TO DIFFERENT HEIGHTS AND ARE PLANTED AT DIFFERENT SPACINGS BETWEEN ROWS.
References Cited (Backward Citations)
US1977033A
Cited
US2228411A
Cited
US2355604A
Cited
US2544521A
Cited
US2749137A
Cited
US2669317A
Cited
US2771958A
Cited
US2788858A
Cited
FR1234819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |