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:
Nov. 30, 2004
Filed:
Sep. 12, 2000
Applicant:
Inventors:
Leslie Wilfred Benum, Red Deer, CA;
Michael C. Oballa, Cochrane, CA;
Sabino Steven Anthony Petrone, Edmonton, CA;
Weixing Chen, Edmonton, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/504 ;
U.S. Cl.
CPC ...
B32B 1/504 ;
Abstract
An outermost surface covering not less than 55% of stainless steel, said surface having a thickness from 0.1 to 15 microns and being a spinel of the formula Mn Cr O wherein x is from 0.5 to 2 is not prone to coking and is suitable for hydrocarbyl reactions such as furnace tubes for cracking.