Porcelain mixing tray for dental use
FIG. 1 is a top and front perspective view of a porcelain mixing tray for dental use showing my new design;
FIG. 2 is a bottom and front perspective view thereof on an enlarged scale;
FIG. 3 is a front elevational view thereof; the rear elevational view being identical;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is an exploded front elevational view illustrating the lid and base portions thereof;
FIG. 7 is a top plan view of the base portion thereof;
FIG. 8 is a bottom plan view of the base portion thereof;
FIG. 9 is a top and front exploded view thereof on an enlarged scale;
FIG. 10 is a bottom and front exploded view thereof on an enlarged scale; and
FIG. 11 is a top and front exploded view of a second embodiment thereof, on an enlarged scale, differing from the first only by the inclusion of another base portion.
| 59965 | December 1921 | Hurtt |
| D215766 | October 1969 | Dusek |
| D255714 | July 1, 1980 | Lancellotti |
| 3675620 | July 1972 | Baustin |
| 4164301 | August 14, 1979 | Thayer |
- Cosmetex Dental International, 1988, Item "Wet-n-Redi Tray". Modern Dental Lab, Apr.-May 1988, p. 33, item wet palette Humidor.
Type: Grant
Filed: Oct 5, 1987
Date of Patent: Apr 3, 1990
Inventors: Dale C. Denny (Bellevue, WA), Salvatore A. Romeo (Seattle, WA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorney: H. Albert Richardson, Jr.
Application Number: 7/105,215
