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 6474989 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 05, 2002

Filed:

Jun. 29, 2001
Applicant:
Inventors:

Kenneth J. Berk, Newton, MA (US);

Fredrick M. Berk, Brookline, MA (US);

Donald Berk, Newton, MA (US);

Assignee:

Pulpdent, Watertown, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 1/24 ;
U.S. Cl.
CPC ...
A61B 1/24 ;
Abstract

A dental mirror instrument with a reflecting surface comprising a metallized film or other reflecting material covered by a protective mask with at least one integral removal tab. Individual mirror/mask assemblies are cut from a multi-layer laminate which includes a release layer on the bottom which is adhesively attached to a thin, reflecting film, which is in turn attached to a protective mask layer. The cutting process creates a shaped reflecting surface covered by a protective mask that is congruent with the reflecting surface except for one or more small tabs projecting beyond the reflecting surface which are part of the protective mask and by which the protective mask may be easily removed.


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