US3718285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of long chips and products made from same
Assignee: Individual
•
Filing: 1970-12-03
•
Granted: 1973-02-27
•
Expires: 1990-12-03
Abstract
Abstract Long chips or bundles of fiber are produced from wood by exposing the wood to shearing stresses obtained by forces produced by pressing jaws or similar means against the surface of the wood or by forces causing torsion in the wood around an axis parallel to the direction of fiber. Additionally the stresses may be caused by flexure around an axis perpendicular to the direction of fiber and/or by cutting parallel to the direction of fiber. Pressing perpendicular to the direction of fiber may also occur.
Inventors
- 👤 E Bang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:03
CPC Classifications
D; D01; D01B; D01B1/00; D01B1/10; B; B27; B27L; B27L11/00; B27L11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2380214A
Cited
US2532660A
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US2592594A
Cited
US2947655A
Cited
US3016324A
Cited
US3311308A
Cited
US3411720A
Cited
US3533563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |