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. 12, 1989
Filed:
Mar. 08, 1988
Applicant:
Inventors:
Emile Bernard, Echirolles, FR;
Gerard Galland, Grenoble, FR;
Yves Vernac, Grenoble, FR;
Charles Doublier, Grenoble, FR;
Assignees:
Centre Technique De L'Industrie Des Papiers, Cartons Et Cellulose, both of, FR;
Societe de Pate A Papier Savoie Dauphine, both of, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162-4 ; 162-5 ; 162-6 ;
Abstract
Process for improving the quality of deinked papermaking pulps obtained by ecycling waste printed papers, in which: