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:
Jul. 03, 1990
Filed:
Oct. 05, 1988
Applicant:
Inventor:
Joseph M van der Zel, Kapberg, NL;
Assignee:
Elephant Edelmetaal B.V., Hoorn, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
291606 ; 409 80 ; 433223 ;
Abstract
A method of making a dental crown for a dental preparation by means of a CAD-CAM system. In the method, first a model of the dental preparation is made from a refractory material under the control of the CAD-CAM system. Subsequently, at least one layer of a material suitable for dental crowns is applied to the model. The layer is sintered during or after its application, and is then ground under the control of the CAD-CAM system until a predetermined shape is obtained. Finally the refractory material is removed.
Published as:
EP0311214A1; NL8702391A; JPH01135344A; US4937928A; EP0311214B1; ATE63048T1; DE3862633D1; ES2022603B3; GR3001892T3; JP2755618B2;