Vacuum flask

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Description

FIG. 1 is a perspective view of a vacuum flask showing my new design thereof;

FIG. 2 is a front elevational view and the rear side elevational view being a mirror image thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D157795 March 1950 Schwarz
D201839 August 1965 Erkers
D213577 March 1969 Douglas
D217734 June 1970 Abramson
D232411 August 1974 Douglas et al.
D308459 June 12, 1990 Balzano
D331861 December 22, 1992 Minuti
D343983 February 8, 1994 Tardif
D402154 December 8, 1998 Joergensen
2718338 September 1955 Cicero
4813368 March 21, 1989 Hutter, III et al.
Patent History
Patent number: D420545
Type: Grant
Filed: Nov 23, 1998
Date of Patent: Feb 15, 2000
Inventor: Frank Teh-Hsiung Huang (Taipei)
Primary Examiner: M. N. Pandozzi
Law Firm: Bacon & Thomas
Application Number: 0/96,892
Classifications
Current U.S. Class: D/7318; D7/317
International Classification: 0701;