US3140736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timber harvesting method and apparatus
Assignee: Individual
•
Filing: 1962-03-28
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Granted: 1964-07-14
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Propst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:36
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/091; B; B27; B27B; B27B17/00; B27B17/0091; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2183; Y10T83/667
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A TIMBER HARVESTING APPARATUS COMPRISING, AN ANGULARLY ADJUSTABLE MAST ADAPTED FOR ALIGNMENT WITH A TREE TO BE CUT, TREE GRIPPING MEANS ON THE MAST ARRANGED TO GRIP A PORTION OF THE TREE TRUNK IN SPACED RELATION ABOVE THE BASE, SPACED UPPER AND LOWER SEVERING MEANS BENEATH SAID GRIPPING MEANS INCLUDING DRIVE MEANS TO ENERGIZE SAID SERVERING MEANS FOR HORIZONTAL ADVANCEMENT THROUGH THE TRUNK AT SPACED INTERVALS, AND TREE DESCENT MEANS BETWEEN SAID GRIPPING MEANS AND SAID SEVERING MEANS TO SELECTIVELY GRIP THE UNCUT SECTION OF THE TREE TRUNK FOR LOWERING INTO CUTTING POSITION BETWEEN SAID SEVERING MEANS, THEREBY TO PROVIDE FOR SEVERING THE TREE INTO SELECTED LENGTHS ACCORDING TO THE SPACING BETWEEN SAID SEVERING MEANS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |