Distillation flask

Description

FIG. 1 is a front perspective view of a distillation flask showing my new design;

FIG. 2 is a rear perspective view thereof;

Referenced Cited
U.S. Patent Documents
D230775 March 1974 Frost
3870602 March 1975 Fromann et al.
4334028 June 8, 1982 Carver
4770854 September 13, 1988 Zyman
4976927 December 11, 1990 Straus
Patent History
Patent number: D318917
Type: Grant
Filed: Nov 21, 1988
Date of Patent: Aug 6, 1991
Inventor: Narbik A. Karamian (Bethesda, MD)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Application Number: 7/273,499