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:
Jun. 18, 1996
Filed:
Feb. 23, 1994
Applicant:
Inventor:
Randy Donahoo, Tuttle, OK (US);
Assignee:
Ultrak, Inc., Carrollton, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359894 ; 359823 ; 359425 ; 348 66 ;
Abstract
An electronic optical viewing wand capable of viewing an object in a confined space, such as a dental patient's mouth, using only ambient light. The wand can be held and the focused in one hand via a telescoping/sliding focusing casing. The focal distance is adjustable from about 5 mm to infinity without having to change lenses.