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:
Jun. 11, 2013
Filed:
Jun. 13, 2012
Applicants:
S. Ananda Weerawarna, Seattle, WA (US);
Harshadkumar M. Shah, Bonney Lake, WA (US);
Inventors:
S. Ananda Weerawarna, Seattle, WA (US);
Harshadkumar M. Shah, Bonney Lake, WA (US);
Assignee:
Weyerhaeuser NR Company, Federal Way, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/02 (2006.01); C04B 16/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fiber-cement product which includes a treated cellulose wood pulp fiber. The fiber is treated with fibrillated carboxymethyl cellulose or a carboxyethyl cellulose and poly(diallyldimethyl ammonium)chloride. The fiber can be bleached or partially bleached, refined or unrefined or a mixture of refined and unrefined fiber.