Patent US3084749A successfully refreshed from Google Patents.
US3084749A
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US
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Cultivator shank spring mounting
Assignee: Individual
•
Filing: 1960-05-23
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Granted: 1963-04-09
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Anderson Peter Britanius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:22
CPC Classifications
A; A01; A01B; A01B61/00; A01B61/04; A01B61/044; A01B61/046; A01B35/00; A01B35/20; A01B35/22; A01B35/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A SPRING RELEASE FOR MOUNTING A CULTIVATOR SHANK ON A FRAME CROSS BAR INCLUDING A CLAMP ATTACHABLE ON THE CROSS BAR, SAID CLAMP HAVING AN UPWARDLY PROJECTING FIN, WINGS REARWARDLY PROJECTING FROM THE CLAMP, THE SHANK HAVING MEANS BY WHICH IT MAY BE PIVOTALLY CARRIED BY THE WINGS, SAID SHANK CARRYING MEANS INCLUDING A REARWARDLY PROJECTING ARM HAVING A LINK PIVOTED THERETO, LINK PLATES HAVING THEIR UPPER ENDS PIVOTED TO THE FIN AND THEIR LOWER ENDS PIVOTED TO THE LINK, AN ARM FIXED ON THE LINK PLATES PROJECTING OVER SAID LINK, COILED SPRINGS ATTACHED TO THE CLAMP, AND MEANS ATTACHING SAID
Claim 2
Dependent Claim
102 words
IN A SPRING RELEASE FOR MOUNTING A CULTIVATOR SHANK ON A FRAME CROSS BAR INCLUDING A CLAMP ATTACHABLE ON THE CROSS BAR, SAID CLAMP HAVING AN UPWARDLY PROJECTING FIN, WINGS REARWARDLY PROJECTING FROM THE CLAMP, THE SHANK HAVING MEANS BY WHICH IT MAY BE PIVOTALLY CARRIED BY THE WINGS, SAID SHANK CARRYING MEANS INCLUDING A REARWARDLY PROJECTING ARM HAVING A LINK PIVOTED THERETO, LINK PLATES HAVING THEIR UPPER ENDS PIVOTED TO THE FIN AND THEIR LOWER ENDS PIVOTED TO THE LINK, AN ARM FIXED ON THE LINK PLATES PROJECTING OVER SAID LINK, COILED SPRINGS ATTACHED TO THE CLAMP, AND MEANS ATTACHING SAID
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |