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.

Date of Patent:
Jan. 22, 1985

Filed:

Jun. 06, 1983
Applicant:
Inventors:

Robert A Farnham, San Rafael, CA (US);

Lawrence P Zestar, Richmond, CA (US);

Corey A Bertelsen, Oakland, CA (US);

Assignee:

Chevron Research Company, San Francisco, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 / ; 201 16 ; 201 31 ;
Abstract

Superheated steam generated by passing wet steam through a superheater containing a fluidized or partially fluidized bed of hot particulate solids recovered from a retorting process especially useful in a process for recovering hydrocarbon vapors from a hydrocarbonaceous solid such as oil shale.


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