Patent US3223178A successfully refreshed from Google Patents.
US3223178A
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Assignee: Massey Ferguson Inc
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Filing: 1964-06-03
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Granted: 1965-12-14
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Peter J Clifford
- 👤 Robert E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:10
CPC Classifications
A; A01; A01B; A01B23/00; A01B23/04; A01B23/046; A01B21/00; A01B21/08; A01B21/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A DISC HARROW, A CARRIER FRAME INCLUDING A PAIR OF FRAME MEMBERS HAVING OPPOSED VERTICAL FLANGES DISPOSED IN SPACED, PARALLEL RELATIONSHIP TO DEFINE A GUIDE SLOT THEREBETWEEN, A GUIDE BRACKET MOUNTED ON SAID VERTICAL FLANGES FOR SLIDING MOVEMENT ALONG SAID GUIDE SLOT, A DISC GANG SUPPORT BRACKET CONNECTED WITH SAID GUIDE BRACKET ON THE OPPOSITE SIDE OF SAID FRAME MEMBERS FROM SAID GUIDE BRACKET, FASTENING MEANS FOR PERMITTING LIMITED PIVOTAL MOVEMENT ABOUT A VERTICAL AXIS RELATIVE TO SAID GUIDE MEMBER AND FOR LOCKING SAID GUIDE BRACKET AND SUPPORT BRACKET AGAINST MOVEMENT ALONG SAID GUIDE SLOT,
Claim 2
Dependent Claim
96 words
IN A DISC HARROW, A CARRIER FRAME INCLUDING A PAIR OF FRAME MEMBERS HAVING OPPOSED VERTICAL FLANGES DISPOSED IN SPACED, PARALLEL RELATIONSHIP TO DEFINE A GUIDE SLOT THEREBETWEEN, A GUIDE BRACKET MOUNTED ON SAID VERTICAL FLANGES FOR SLIDING MOVEMENT ALONG SAID GUIDE SLOT, A DISC GANG SUPPORT BRACKET CONNECTED WITH SAID GUIDE BRACKET ON THE OPPOSITE SIDE OF SAID FRAME MEMBERS FROM SAID GUIDE BRACKET, FASTENING MEANS FOR PERMITTING LIMITED PIVOTAL MOVEMENT ABOUT A VERTICAL AXIS RELATIVE TO SAID GUIDE MEMBER AND FOR LOCKING SAID GUIDE BRACKET AND SUPPORT BRACKET AGAINST MOVEMENT ALONG SAID GUIDE SLOT,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |