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:
Oct. 31, 1989
Filed:
Apr. 28, 1988
Applicant:
Inventors:
Michel Roussel, Paris, FR;
Daniel Baffreau, St Maur Les Fosses, FR;
Assignees:
Entreprise Gagneraud Pere & Fils, Tokyo, JP;
Total Compagnie Francaise des Petroles, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106 97 ; 106117 ;
Abstract
The invention concerns a compound cement containing cement and a blast-furnace slag, more particularly for bore holes. This compound cement is characterized in that it comprises the following components: