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. 08, 1976
Filed:
Jan. 14, 1974
Applicant:
Inventor:
Dagobert M Wyslouzil, Peterborough, CA;
Assignee:
The Superior Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D / ; C10G / ;
U.S. Cl.
CPC ...
4232 / ; 2330 / ; 208 / ; 423427 ;
Abstract
Nahcolite-bearing oil shale ore is heated to produce a distinct color change in the nahcolite, differentiating the nahcolite from the host oil shale for optical sorting, and such sorting is then accomplished by optical sorting means.