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:
Jan. 26, 1999
Filed:
Jul. 28, 1997
Applicant:
Inventor:
Pierre Magnin, Mont-sur-Lausanne, CH;
Assignee:
Asulab S.A., Bienne, CH;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501103 ; 206301 ; 248114 ; 368 88 ;
Abstract
A finished or semi-finished item in sintered zirconia is characterized by a metallic appearance obtained by placing a previously shaped and sintered zirconia item in its finished or semi-finished shape in an oven in which there is a plasma containing hydrogen, bringing the item to a temperature of around 800.degree. C. or more, and maintaining the item at this temperature for a period of time from around a quarter of an hour to three hours, preferably two hours.