High performance, lightweight structural particleboard
Patent 4246310 Issued on January 20, 1981. Estimated Expiration Date: 
April 6, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 6, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3093524 3164511 3447996 3478861 3616128 3721329 Load carrying member constructed of oriented wood strands and process for making same Products of converted lignocellulosic materials Structural chipboard wood beam Artificial board of lumber and method for manufacturing same InventorsApplicationNo. 06/027695 filed on 04/06/1979US Classes:428/106, Wood grain428/107, Strand or strand-portions428/113, Fibers428/114, Including grain, strips, or filamentary elements in different layers or components parallel428/218, Density or compression of components428/326, Cellulosic (e.g., wood, paper, cork, rayon, etc.)428/337, Of base or substrate428/339, Including synthetic resin or polymer layer or component428/528, Wood428/541Wood timber product (e.g., piling, post, veneer, etc.)ExaminersPrimary: Ansher, HaroldAttorney, Agent or FirmInternational ClassesB32B 21/12 (20060101)B32B 21/00 (20060101) B27N 3/08 (20060101) B27N 3/14 (20060101) AbstractAlined wood particles and an adhesive binder comprise the faces of a sandwiched, laminate-like structure formed in a one-step pressing and heating operation, the interior of which is made of randomly oriented wood particles and an adhesive binder, exhibiting light weight and greater bending strength than known particleboards constructed from heavy hardwoods such as red oak.Other References
Field of SearchIncluding grain, strips, or filamentary elements in respective layers or components in angular relationWood grain Strand or strand-portions On each side of strands or strand-portions Including grain, strips, or filamentary elements in different layers or components parallel Density or compression of components Of base or substrate Including synthetic resin or polymer layer or component IMPREGNATED NATURALLY SOLID PRODUCT (E.G., LEATHER, STONE, ETC.) Fibers Wood timber product (e.g., piling, post, veneer, etc.) Cellulosic | |
