Patent US3311192A successfully refreshed from Google Patents.
US3311192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree working platform
Assignee: Massey Ferguson Inc
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Filing: 1966-03-02
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Granted: 1967-03-28
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Clarence B Richey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:56
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A TREE WORKING PLATFORM COMPRISING: A BASE MEMBER ADAPTED TO BE SUPPORTED ON THE GROUND ADJACENT TO THE BASE OF THE TREE, A CARRIER FOR SUPPORTING A WORKER, AND A FRAME SUPPORTING THE CARRIER ON THE BASE MEMBER FOR SELECTIVE ROTATION ABOUT TWO PERPENDICULAR AXES, THE FIRST OF WHICH IS VERTICAL AND IS GENERALLY COAXIAL WITH THE LONGITUDINAL AXIS OF THE TREE TRUNK TO PERMIT THE CARRIER TO MOVE AROUND THE TREE AND THE SECOND OF WHICH IS HORIZONTAL AND IS DISPOSED ABOVE THE GROUND TO PERMIT THE CARRIER TO MOVE IN A VERTICAL CURVED PATH AROUND THE PERIPHERY OF THE THREE BETWEEN THE GROUND AND TOP OF THE TREE.
Claim 2
Dependent Claim
110 words
A TREE WORKING PLATFORM COMPRISING: A BASE MEMBER ADAPTED TO BE SUPPORTED ON THE GROUND ADJACENT TO THE BASE OF THE TREE, A CARRIER FOR SUPPORTING A WORKER, AND A FRAME SUPPORTING THE CARRIER ON THE BASE MEMBER FOR SELECTIVE ROTATION ABOUT TWO PERPENDICULAR AXES, THE FIRST OF WHICH IS VERTICAL AND IS GENERALLY COAXIAL WITH THE LONGITUDINAL AXIS OF THE TREE TRUNK TO PERMIT THE CARRIER TO MOVE AROUND THE TREE AND THE SECOND OF WHICH IS HORIZONTAL AND IS DISPOSED ABOVE THE GROUND TO PERMIT THE CARRIER TO MOVE IN A VERTICAL CURVED PATH AROUND THE PERIPHERY OF THE THREE BETWEEN THE GROUND AND TOP OF THE TREE.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |