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:
Jan. 02, 1990
Filed:
Nov. 21, 1984
Applicant:
Inventors:
Randall P Bright, Bowie, MD (US);
Sean Wise, Millersville, MD (US);
Mark L MacKenzie, Laurel, MD (US);
Assignee:
Cemcom Corporation, Lanham, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106 90 ; 106 97 ; 106 98 ;
Abstract
The temperatures at which the cementitious composite materials described in U.S. Pat. No. 4,482,385 can be used as tool or mold materials are extended by a treatment which comprises heating said composite materials to a temperature sufficient to expel free and adsorbed water from the concrete portion of the cementitious composite and thereafter refilling the resulting pores with an organic monomer or prepolymer and then crosslinking said impregnant to form an organic polymeric network in the inorganic composite material.