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:
Feb. 21, 1978
Filed:
Jul. 06, 1976
Applicant:
Inventor:
Kenneth Henry Marshall, Castlecrag, AU;
Assignee:
Premach Pty. Limited, Sydney, AU;
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
32 49 ;
Abstract
Apparatus capable of use by unskilled hands for scribing, including marking and cutting, a tubular sleeve to produce a contoured end corresponding to the contour of the sub-gingival shoulder of a patient's tooth which has been prepared for a jacket crown, which apparatus comprises a mount for a scribing instrument and a body supporting same which is a snug fit within the bore of the sleeve of a pre-prepared jig used to assist the dentist in the tooth preparation, and said scribing instrument is carried by a rotatable portion of the mount to engage and follow a surface on the sleeve which has a contour corresponding to the contour of the sub-gingival shoulder.