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:
Jun. 07, 1977
Filed:
Aug. 15, 1975
Applicant:
Inventor:
Robert A Olson, York New Salem, PA (US);
Assignee:
P. H. Glatfelter Co., Spring Grove, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21D / ;
U.S. Cl.
CPC ...
1621 / ; 106300 ; 106306 ; 1621 / ; 162183 ;
Abstract
Method of making TiO.sub.2 --CaCO.sub.3 combinations without involving a chemical reaction, said combinations, containing up to 50% CaCO.sub.3 in the combination, having the same scattering coefficient in paper as 100% TiO.sub.2 and method of making opaque paper containing the resulting combination.