US3720249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree harvesting shear
Assignee: Timberjack Inc
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Filing: 1971-03-12
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Granted: 1973-03-13
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Expires: 1991-03-12
Abstract
Abstract A BLADE FOR A TREE HARVESTING MECHANISM INCLUDES A FIRST CUTTING EDGE DISPOSED IN A GENERALLY HORIZONTAL PLANE AND A SECOND CUTTING EDGE DISPOSED IN GENERALLY VERTICAL PLANE IMMEDIATELY BELOW SAID FIRST CUTTING EDGE. THE SECOND CUTTING EDGE THEREBY BEING EFFECTIVE TO SPLIT THE STUMP OF SAID TREE SIMULTANEOUSLY AS SAID FIRST CUTTING EDGE SHEARS THE TRUNK OF SAID TREE.
Inventors
- 👤 A Peltonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:28
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/087; A01G23/089
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |