Light filter for use in curing dental bonding resins

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Description

FIG. 1 is a top and front perspective view of a light filter for use in curing dental bonding resins, showing my new design;

FIG. 2 is a front elevational view thereof, the rear being identical in appearance;

FIG. 3 is a top plan view thereof, the bottom being identical in appearance;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a left side elevational view thereof. The cross-hatched pattern is understood to cover the entire surface illustrated.

Referenced Cited
U.S. Patent Documents
D240055 May 1976 Spivey, III
D247367 February 28, 1978 Dragan
D265506 July 20, 1982 Finamore
3959908 June 1, 1976 Lowe
4112603 September 12, 1978 Giulie
Foreign Patent Documents
493548 March 1930 DE2
Other references
  • S.S. White Dental Catalogue (1914) p. 15, "Partial Upper Trays)".
Patent History
Patent number: D294639
Type: Grant
Filed: Feb 7, 1985
Date of Patent: Mar 8, 1988
Inventor: Theodore P. Croll (Doylestown, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Attorney: Gregory J. Gore
Application Number: 6/699,266
Classifications
Current U.S. Class: D24/16; D21/213