Vacuum firing porcelain furnace

- Sybron Corporation

FIG. 1 is a top plan view of a vacuum firing porcelain furnace showing my design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevation view thereof; and

FIG. 4 is a right side elevation view thereof.

The rear surface of the vacuum firing porcelain furnace is substantially planar and unornamented. _

Referenced Cited
U.S. Patent Documents
2266735 December 1941 Berghaus et al.
2354127 July 1944 Krauscope et al.
3128326 April 1964 Hintenberger
3403212 September 1968 Sato
3441652 April 1969 Eicker
Patent History
Patent number: D269903
Type: Grant
Filed: Oct 24, 1980
Date of Patent: Jul 26, 1983
Assignee: Sybron Corporation (Rochester, NY)
Inventor: Robert S. Quandt (Libertyville, IL)
Primary Examiner: Catherine E. Kemper
Attorneys: Roger Aceto, Robert J. Bird
Application Number: 6/200,332
Current U.S. Class: D24/08
International Classification: D2401;