Patent US3606848A successfully refreshed from Google Patents.
US3606848A
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US
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Fertilizer rig
Assignee: Individual
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Filing: 1968-12-20
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Granted: 1971-09-21
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Expires: 1988-12-20
Abstract
Abstract A LIQUID-FERTILIZER-INJECTING RIG HAVING TUBULAR, FERTILIZERINJECTING TINES FOR DIRECTLY PENETRATING THE SOIL. THESE TINES ARE INDIVIDUALLY RESILIENTLY MOUNTED FOR ACCOMMODATING UNEVEN TERRAIN. THE RIG PREFERABLY COMPRISES A TRAILER DEVICE HAVING A PLURALITY OF SECTIONS INCLUDING A MIDDLE SECTION AND TWO SIDE SECTIONS, WITH ONE SECTION DIRECTLY BEHIND THE FERTILIZER TANK AND THE SIDE SECTIONS BEING DISPOSED ON EITHER SIDE THEREOF, SO THAT THE THREE SECTIONS CAN BE PULLED ABREAST OF EACH OTHER WITH MEANS FOR DISCONNECTING THE SIDE SECTIONS SO THEY CAN BE ROTATED 90 DEGREES AND BE DISPOSED BEHIND THE CENTRAL SECTION WHEN THE RIG IS PULLED ALONG A NARROW ROAD.
Inventors
- 👤 Charley B Dobbs
- 👤 Arlie R Fullerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:58
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |