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. 07, 2005
Filed:
May. 27, 2003
Jacob Freas Pollock, Berkeley, CA (US);
Christopher D. Tagge, San Carlos, CA (US);
Lennard Torres, Pleasanton, CA (US);
David S. Soane, Piedmont, CA (US);
Jacob Freas Pollock, Berkeley, CA (US);
Christopher D. Tagge, San Carlos, CA (US);
Lennard Torres, Pleasanton, CA (US);
David S. Soane, Piedmont, CA (US);
Innovative Construction and Building Materials, Emeryville, VA (US);
Abstract
A gypsum-based composite structure is prepared from a slurry comprising a mixture of calcium sulfate hemihydrate, a cellulose ether additive other than CMC and an amount of water that is sufficient to form a slurry. The calcium sulfate hemihydrate is hydrated by the water forming a wallboard core reinforced by the cellulose ether additive. The concentration, viscosity grade and degree of substitution of the cellulose ether are selected to give the composite improved nail pull resistance and greater flexural strength.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile