US3213812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furrow opener
Assignee: International Motors LLC
•
Filing: 1964-03-02
•
Granted: 1965-10-26
•
Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Clark H Forsyth
- 👤 Dennis W Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:53
CPC Classifications
A; A01; A01C; A01C5/00; A01C5/06; A01C5/062; A01C5/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A FURROW OPENER ASSEMBLY COMPRISING A SUPPORT, A DISK ROTATABLY MOUNTED ON THE SUPPORT ARRANGED TO OPEN A FURROW IN THE GROUND, A BOOT STRUCTURE MOUNTED ON THE SUPPORT AT ONE SIDE OF SAID DISK, A LANDSIDE FORMING PART OF SAID BOOT ADAPTED TO BEAR AGAINST THE WALL OF THE FURROW FORMED BY SAID DISK, SAID LANDSIDE HAVING A VERTICAL OPENING IN THE LOWER EDGE THEREOF FORMING A FORWARD PORTION ALONGSIDE SAID DISK AND A REARWARD PORTION EXTENDING REARWARDLY THEREOF AND AT A SHALLOWER DEPTH THAN SAID DISK, CONDUIT MEANS ON THE BOOT FOR DIRECTING FERTILIZER AND THE LIKE BETWEEN SAID FORWARD PORTION AND SAID DISK, ANOTHER CONDUIT MEANS ON THE BOOT FOR DISCHARGING SEED IN THE PATH FORMED BY SAID REARWARD PORTION, SAID FORWARD PORTION OF THE LANDSIDE BEING BENT LATERALLY AWAY FROM THE PLANE OF SAID REARWARD PORTION AND TOWARD SAID ONE SIDE OF THE DISK TO FORM AN OUTLET BETWEEN SAID FORWARD PORTION AND THE DISK FOR DISCHARGING SAID FERTILIZER AND THE LIKE INTO THE BOTTOM OF THE FURROW OPENED BY SAID DISK AND SAID VERTICAL OPENING BEING A FORWARDLY FACING OPENING BETWEEN SAID FORWARD AND REARWARD PORTIONS OF THE LANDSIDE TO DIVERT SOIL LATERALLY THERETHROUGH AND INTO THE PATH OF THE FERTILIZER TO COVER THE LATTER PRIOR TO THE DISCHARGE OF SEED FROM SAID REARWARD PORTION.
Claim 2
Dependent Claim
220 words
A FURROW OPENER ASSEMBLY COMPRISING A SUPPORT, A DISK ROTATABLY MOUNTED ON THE SUPPORT ARRANGED TO OPEN A FURROW IN THE GROUND, A BOOT STRUCTURE MOUNTED ON THE SUPPORT AT ONE SIDE OF SAID DISK, A LANDSIDE FORMING PART OF SAID BOOT ADAPTED TO BEAR AGAINST THE WALL OF THE FURROW FORMED BY SAID DISK, SAID LANDSIDE HAVING A VERTICAL OPENING IN THE LOWER EDGE THEREOF FORMING A FORWARD PORTION ALONGSIDE SAID DISK AND A REARWARD PORTION EXTENDING REARWARDLY THEREOF AND AT A SHALLOWER DEPTH THAN SAID DISK, CONDUIT MEANS ON THE BOOT FOR DIRECTING FERTILIZER AND THE LIKE BETWEEN SAID FORWARD PORTION AND SAID DISK, ANOTHER CONDUIT MEANS ON THE BOOT FOR DISCHARGING SEED IN THE PATH FORMED BY SAID REARWARD PORTION, SAID FORWARD PORTION OF THE LANDSIDE BEING BENT LATERALLY AWAY FROM THE PLANE OF SAID REARWARD PORTION AND TOWARD SAID ONE SIDE OF THE DISK TO FORM AN OUTLET BETWEEN SAID FORWARD PORTION AND THE DISK FOR DISCHARGING SAID FERTILIZER AND THE LIKE INTO THE BOTTOM OF THE FURROW OPENED BY SAID DISK AND SAID VERTICAL OPENING BEING A FORWARDLY FACING OPENING BETWEEN SAID FORWARD AND REARWARD PORTIONS OF THE LANDSIDE TO DIVERT SOIL LATERALLY THERETHROUGH AND INTO THE PATH OF THE FERTILIZER TO COVER THE LATTER PRIOR TO THE DISCHARGE OF SEED FROM SAID REARWARD PORTION.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |