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:
Aug. 05, 1980
Filed:
Sep. 21, 1978
Applicant:
Inventors:
Alfred Hirschvogel, Langweid, DE;
Ernst Freundlinger, Meitingen, DE;
Assignee:
Sigri Elektrographit Gesellschaft mit beschrankter Haftung, Meitingen bei Augsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
428408 ; 423448 ; 423460 ;
Abstract
A flexible graphite laminate produced by compacting expanded graphite having incorporated an alkali metal salt containing at least one of the elements chromium, molybdenum and tungsten. The alkali metal salt reduces the corrosive properties of the flexible graphite laminate. The alkali metal salt may be incorporated during or after manufacture of the flexible graphite laminate from graphite.