US3306240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical incorporator
Assignee: Individual
•
Filing: 1965-07-01
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Granted: 1967-02-28
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 William D Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:51
CPC Classifications
A; A01; A01B; A01B49/00; A01B49/04; A01C; A01C23/00; A01C23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A GROUND-WORKING APPARATUS COMPRISING AN ELONGATED FRAME, FURROW OPENING MEANS MOUNTED ON AND DEPENDING FROM THE FORWARD PORTION OF SAID FRAME FOR EFFECTING AN OUTWARD LATERAL MOVEMENT OF SOIL, MATERIAL DISCHARGE MEANS MOUNTED ON THE FRAME REARWARD OF SAID FURROW OPENING MEANS AND IN ALIGNMENT THEREWITH, FURROW CLOSING MEANS MOUNTED ON SAID FRAME REARWARD OF SAID DISCHARGE MEANS FOR EFFECTING AN INWARD LATERAL MOVEMENT OF SOIL, AND SOIL PACKING MEANS MOUNTED ON SAID FRAME REARWARD OF SAID FURROW CLOSING MEANS, SAID FURROW CLOSING MEANS COMPRISING AN ELONGATED FEED AUGER, SAID AUGER INCLUDING AT LEAST ONE SOIL MIXING AND MOVING BLADE HELICALLY WOUND THEREON FOR EFFECTING A RETURN OF THE SOIL INITIALLY MOVED OUTWARD BY THE FURROW OPENING MEANS.
Claim 2
Dependent Claim
118 words
A GROUND-WORKING APPARATUS COMPRISING AN ELONGATED FRAME, FURROW OPENING MEANS MOUNTED ON AND DEPENDING FROM THE FORWARD PORTION OF SAID FRAME FOR EFFECTING AN OUTWARD LATERAL MOVEMENT OF SOIL, MATERIAL DISCHARGE MEANS MOUNTED ON THE FRAME REARWARD OF SAID FURROW OPENING MEANS AND IN ALIGNMENT THEREWITH, FURROW CLOSING MEANS MOUNTED ON SAID FRAME REARWARD OF SAID DISCHARGE MEANS FOR EFFECTING AN INWARD LATERAL MOVEMENT OF SOIL, AND SOIL PACKING MEANS MOUNTED ON SAID FRAME REARWARD OF SAID FURROW CLOSING MEANS, SAID FURROW CLOSING MEANS COMPRISING AN ELONGATED FEED AUGER, SAID AUGER INCLUDING AT LEAST ONE SOIL MIXING AND MOVING BLADE HELICALLY WOUND THEREON FOR EFFECTING A RETURN OF THE SOIL INITIALLY MOVED OUTWARD BY THE FURROW OPENING MEANS.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |