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:
Dec. 13, 1988
Filed:
Nov. 02, 1987
Leonard W Cheslak, Tustin, CA (US);
Poly-Optical Products, Inc., Santa Ana, CA (US);
Abstract
A dental impression tray constructed from an optically transmissive material prepared with appropriately positioned recesses to direct light towards a U-shaped channel formed in the body of the tray. The channel is dimensioned to receive a portion of a patient's teeth. The recesses are formed in the outermost surfaces of the dental tray sides. In particular, multiple, spaced-apart recesses are formed in the outermost surfaces of the tray sides to deflect light into the channel area, which may have deposited therein a light polymerizable or curable material. Light is introduced into the tray through at least a first light portal which is integrally formed in a side of the tray.