Patent US3218791A successfully refreshed from Google Patents.
US3218791A
Expired / Lapsed
US
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Tools for working crop or like material lying on the ground
Assignee: C Van der Lely NV
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Filing: 1960-10-10
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Granted: 1965-11-23
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Lely Cornelis Van Der
- 👤 Lely Ary Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:27
CPC Classifications
A; A01; A01D; A01D78/00; A01D78/08; A01D78/14; A01D80/00; A01D80/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A ROTARY TOOL FOR WORKING CROP OR LIKE MATERIAL LYING ON THE GROUND COMPRISING A CENTRAL MEMBER ROTATABLE ABOUT A SUBSTANTIALLY HORIZONTAL AXIS, A PLURALITY OF TINES EXTENDING OUTWARDLY FROM SAID CENTRAL MEMBER WHICH ENGAGE MATERIAL LYING ON THE GROUND IN THEIR LOWERMOST RELATIVE POSITIONS, A STRIPPING MEMBER ASSOCIATED WITH EACH TINE WHICH ROTATES WITH ITS ASSOCIATED TINE AND STRIPS CROP OR LIKE MATERIAL THEREFROM WHEN THE TINE IS CLEAR OF THE GROUND, EACH SAID STRIPPING MEMBER BEING MOVABLE WITH RESPECT TO ITS ASSOCIATED TINE IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THAT WHICH SAID TINE EXTENDS FROM SAID CENTRAL MEMBER.
Claim 2
Dependent Claim
100 words
A ROTARY TOOL FOR WORKING CROP OR LIKE MATERIAL LYING ON THE GROUND COMPRISING A CENTRAL MEMBER ROTATABLE ABOUT A SUBSTANTIALLY HORIZONTAL AXIS, A PLURALITY OF TINES EXTENDING OUTWARDLY FROM SAID CENTRAL MEMBER WHICH ENGAGE MATERIAL LYING ON THE GROUND IN THEIR LOWERMOST RELATIVE POSITIONS, A STRIPPING MEMBER ASSOCIATED WITH EACH TINE WHICH ROTATES WITH ITS ASSOCIATED TINE AND STRIPS CROP OR LIKE MATERIAL THEREFROM WHEN THE TINE IS CLEAR OF THE GROUND, EACH SAID STRIPPING MEMBER BEING MOVABLE WITH RESPECT TO ITS ASSOCIATED TINE IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO THAT WHICH SAID TINE EXTENDS FROM SAID CENTRAL MEMBER.
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |