Patent US3327484A successfully refreshed from Google Patents.
US3327484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape laying plow
Assignee: H&L Tooth Co
•
Filing: 1965-01-14
•
Granted: 1967-06-27
•
Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Richard L Launder
- 👤 Ernie L Launder
- 👤 France D Peveler
- 👤 Zell Theodore E Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:44
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A TAPER LAYING PLOW, COMPRISING: (A) A NARROW, VERTICAL PLOW BEAM ADAPTED FOR ATTACHMENT TO A TRACTOR AND HAVING A FORWARDLY DIRECTED POINT AT ITS LOWER END, THEREBY TO FORM A NARROW, VERTICAL SLIT WHEN DRAWN THROUGH THE GROUND; (B) HINGE MEANS DEFINING A VERTICAL AXIS AND DISPOSED BEHIND SAID PLOW BEAM; (C) A NARROW, VERTICAL HOUSING ESSENTIALLY THE SAME WIDTH AS SAID PLOW BEAM AND CONNECTED THERETO BY SAID HINGE MEANS, SAID HOUSING DEFINING A NARROW, VERTICAL CAVITY, ENLARGED FORWARDLY AND REARWARDLY AT ITS LOWER PORTION TO FORM AN INVERTED T, SAID CAVITY HAVING AN ENTRANCE OPENING AT ITS UPPER END AND A REARWARDLY DIRECTED VERTICAL DISCHARGE SLIT ADJACENT ITS LOWER END;
Claim 2
Dependent Claim
113 words
A TAPER LAYING PLOW, COMPRISING: (A) A NARROW, VERTICAL PLOW BEAM ADAPTED FOR ATTACHMENT TO A TRACTOR AND HAVING A FORWARDLY DIRECTED POINT AT ITS LOWER END, THEREBY TO FORM A NARROW, VERTICAL SLIT WHEN DRAWN THROUGH THE GROUND; (B) HINGE MEANS DEFINING A VERTICAL AXIS AND DISPOSED BEHIND SAID PLOW BEAM; (C) A NARROW, VERTICAL HOUSING ESSENTIALLY THE SAME WIDTH AS SAID PLOW BEAM AND CONNECTED THERETO BY SAID HINGE MEANS, SAID HOUSING DEFINING A NARROW, VERTICAL CAVITY, ENLARGED FORWARDLY AND REARWARDLY AT ITS LOWER PORTION TO FORM AN INVERTED T, SAID CAVITY HAVING AN ENTRANCE OPENING AT ITS UPPER END AND A REARWARDLY DIRECTED VERTICAL DISCHARGE SLIT ADJACENT ITS LOWER END;
References Cited (Backward Citations)
US1750054A
Cited
US2314045A
Cited
US3140745A
Cited
US3250077A
Cited
US3193432A
Cited
US3182459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |