Vacuum flask

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Description

FIG. 1 is a front elevational view of a vacuum flask showing my new design;

FIG. 2 is rear elevation view thereof.

FIG. 3 is a left side elevation view thereof.

FIG. 4 is a right side elevation view thereof.

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

FIG. 6 is a bottom plan view thereof.

Claims

The ornamental design for a vacuum flask, as shown and described.

Referenced Cited
U.S. Patent Documents
2719338 October 1955 Carmichael
D200487 March 1965 Dann, Jr.
D201839 August 1965 Erkers
D420545 February 15, 2000 Huang
D428757 August 1, 2000 Loffler et al.
D453279 February 5, 2002 Huang
D483993 December 23, 2003 Boyle et al.
Patent History
Patent number: D551014
Type: Grant
Filed: Dec 20, 2006
Date of Patent: Sep 18, 2007
Assignee: Phoenix Vacuum Flask Company, Ltd. (Shaten, N.T.)
Inventor: Teh-hsiung Frank Huang (Hong Kong)
Primary Examiner: M. N. Pandozzi
Attorney: Kenyon & Kenyon, LLP
Application Number: 29/270,375
Classifications
Current U.S. Class: D7/317; D7/318; D7/598; D7/600