US3327747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for kerfless cutting of wood
Assignee: Weyerhaeuser Co
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Filing: 1965-10-24
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Granted: 1967-06-27
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
B; B27; B27M; B27M1/00; B27L; B27L7/00; B27L7/02; Y; Y10; Y10T; Y10T408/00; Y10T408/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A METHOD FOR SEVERING WOOD, COMPRISING: RECIPROCATING A KNIFE MEANS AT A PREDETERMINED FREQUENCY AND STROKE; PASSING THE KNIFE MEANS THROUGH THE WOOD TO BE SEVERED WITH A CHOPPING ACTION BETWEEN THE WOOD TO BE KNIFE MEANS; EXERTING A FORCE ON THE WOOD TO BE SERVERED IN A PLANE PERPENDICULAR TO THE PLANE OF THE RECIPROCATING KNIFE MEANS PASSING THROUGH THE WOOD AT A POSITION JUST AHEAD OF THE JUNCTURE OF THE KNIFE MEANS AND WOOD; REGULATING THE TEMPERATURE OF THE KNIFE MEANS BY THE SPEED OF THE WOOD PASSING THROUGH THE KNIFE 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) | 1970-06-26 | 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 |