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. 15, 1991
Filed:
Oct. 02, 1989
Applicant:
Inventors:
Assignee:
Fosroc International Limited, Birmingham, GB;
Primary Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
405150 ; 405146 ; 405269 ; 405263 ; 166293 ;
Abstract
A gelling agent is added to a fast setting cement slurry comprising water, cement and anti-washout retarder and the mix is injected into a void containing running water and allowed to set to form rapidly a material of high compressive strength.
Annett, Martin. (1991). Grouting method and apparatus (U.S. Patent No. 4984933). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4984933
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