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:
May. 13, 1980
Filed:
Nov. 03, 1978
Applicant:
Inventors:
Gerald H Spiegelman, Wayne, NJ (US);
Harry B Nickles, Glen Rock, NJ (US);
Jack M Solomon, West Caldwell, NJ (US);
Assignee:
Witco Chemical Corp., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10C / ;
U.S. Cl.
CPC ...
208-5 ; 208 46 ;
Abstract
A method for making pitch from petroleum bottoms fractions by air blowing in the presence of about 1 percent by weight of metallic sodium. The method reduces processing time by about one-third and the product is of the desired high density of about 1.25 g/ml. to above 1.30 g/ml. at 25.degree. C.
Spiegelman, Gerald. (1980). Catalytic method for making pitch (U.S. Patent No. 4202755). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4202755
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile