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:
Sep. 04, 1979
Filed:
Jan. 05, 1978
Robert W Sterrett, Dunwoody, GA (US);
Larry S Shu, Newton Highlands, MA (US);
Robert J Ostertog, Milford, MA (US);
W. R. Grace & Co., Cambridge, MA (US);
Abstract
Low density cementitious compositions are disclosed which are essentially the hydrated products from mixtures of inorganic hydratable binders such as gypsum and Portland cement with a novel lightweight aggregate material comprised of partially combusted bark particles obtained from bark-burning boiler furnaces of pulp processing concerns. Preferred compositions additionally incorporate conventional additives such as surfactants, fibrous materials, foam stabilizers and conventional lightweight aggregate such as expanded vermiculite to give products useful as lightweight thermal insulation concretes and fireproofings.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile