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:
Feb. 24, 1976
Filed:
Oct. 15, 1973
Applicant:
Inventors:
Pierre Delfosse, Paris, FR;
Alfred Bosshard, Oftringen, CH;
Assignee:
Pluss-Staufer AG, , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428511 ; 106214 ; 1062 / ; 106306 ; 260 42 ; 428514 ; 428537 ;
Abstract
A coated paper comprising an ultrafine natural calcium carbonate as a pigment, which has an average statistical particle diameter of from 0.5 to 0.7 .mu.m, a maximum diameter of from 3.0 to 4.0 .mu.m, and a specific surface area of at least 12sq.m./g.