Patent US3159959A successfully refreshed from Google Patents.
US3159959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiscalping suspension for rotary hay cutter
Assignee: Individual
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Filing: 1963-05-28
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Granted: 1964-12-08
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Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Bernard C Mathews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:59
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/43; A01D34/435; A01D34/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
IN A ROTARY HAY CUTTER HAVING A MOBILE MAIN FRAME, A CUTTING ROTOR ROTATABLY JOURNALED IN SAID MAIN FRAME, A DRAW BAR ASSEMBLED ARRANGED AT ONE SIDE OF SAID MAIN FRAME, AND SKIDS MOUNTED ON SAID MAIN FRAME AT EITHER SIDE OF SAID ROTOR FOR MAINTAINING A MINIMUM CLEARANCE BETWEEN SAID ROTOR AND THE GROUND, AN ANTISCAPLING SUSPENSION FOR SAID MAIN FRAME WHICH COMPRISES A SUBFRAME RIGIDLY CONNECTED TO SAID MAIN FRAME AT ONE SIDE THEREOF, HORIZONTAL PIVOT MEANS CONNECTING SAID DRAW BAR ASSEMBLY TO SAID SUBFRAME, STOP MEANS INTERPOSED BETWEEN SAID DRAW BAR ASSEMBLY AND SAID SUBFRAME TO LIMIT PIVOTAL MOVEMENT OF SAID MAIN FRAME WITH RESPECT TO SAID DRAW BAR ASSEMBLY IN ORDER TO MAINTAIN A NORMAL OPERATING CLEARANCE BETWEEN SAID SKIDS AND THE GROUND, AND SPRING MEANS EXTENDING BETWEEN SAID DRAW BAR ASSEMBLY AND SAID SUBFRAME FOR URGING SAID DRAW BAR ASSEMBLY IN A DIRECTION AWAY FROM SAID STOP MEANS.
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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |