Vacuum flask

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Description

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

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

Claims

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

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Patent History
Patent number: D522796
Type: Grant
Filed: Mar 26, 2004
Date of Patent: Jun 13, 2006
Assignee: Phoenix Vacuum Flask Co., Ltd.
Inventor: Frank Huang Teh-Hsiung (Shatin)
Primary Examiner: M. N. Pandozzi
Attorney: Bell, Boyd & Lloyd LLC
Application Number: 29/202,157
Classifications
Current U.S. Class: D7/318; D7/317