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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.:

US 5053369 B1

PDFFull Text
Date of Patent:
Oct. 01, 1991

Filed:

Oct. 25, 1989

Sintered microcrystalline ceramic material

Applicant:
Inventors:

Herwig Winkler, Klagenfurt, AT;

Peter Janz, Klagenfurt, AT;

Georg Gottschamel, Treibach, AT;

Assignee:

Treibacher Chemische Werke Aktiengesellschaft, Steiermark, DE;

Attorney:

Kelman; Kurt

Primary Examiner:

William R Dixon, Jr

Assistant Examiner:

Willie J Thompson

Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501152 ; 51309 ; 501 95 ; 501153 ;
Abstract

Sintered microcrystalline ceramic material based on .alpha.-Al.sub.2 O.sub.3 with an addition of 0.01 to 2.0 weight percent of a cerium compound, consisting of a microcrystalline matrix and 0.1 to 30 volume percent whisker-like needles, whereby said cerium compound is mainly present in the needles. The whisker-like needles give this material a special tenacity combined with good abrasive results.

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Winkler, Herwig. (1991). Sintered microcrystalline ceramic material (U.S. Patent No. 5053369). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5053369

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