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. 05, 1979
Filed:
Feb. 15, 1978
Applicant:
Inventors:
John A Paraskos, Pittsburgh, PA (US);
Herman Taylor, Jr, Pittsburgh, PA (US);
Assignee:
Gulf Research & Development Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 10 ;
Abstract
A catalytic process for liquefying coal wherein the life of the catalyst is extended by periodic screening to remove ash-containing particulate matter.