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. 13, 1981
Filed:
Apr. 02, 1979
Applicant:
Inventors:
Jonas A Lindahl, Domsjo, SE;
Claes G Svensson, Kode, SE;
Assignee:
MoDo-Chemetics AB, Ornskoldsvik, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 17 ; 162 19 ; 162 46 ; 162 57 ; 162 60 ; 162 63 ; 162 68 ; 162 72 ; 162 76 ; 162 78 ; 162 80 ; 162 83 ; 162 90 ;
Abstract
A process is provided for the chemical refining of cellulose pulp which comprises, in sequence, the steps of: