The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
May. 29, 2009
Applicants:
Robert T Hamilton, Seattle, WA (US);
David J O'callaghan, Bonney Lake, WA (US);
Hugh West, Seattle, WA (US);
Inventors:
Robert T Hamilton, Seattle, WA (US);
David J O'Callaghan, Bonney Lake, WA (US);
Hugh West, Seattle, WA (US);
Assignee:
Weyerhaeuer NR Company, Federal Way, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 16/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A building material product comprising a cementitious binder, an aggregate and cellulose reinforcing fibers wherein the cellulose reinforcing fibers have been treated with cationic or nonionic oil. The resulting fiber when included in a fiber cement composite results in improved deflection of the composite at peak loading as well as improved impact strength while maintaining overall board strength.