Vacuum flask
United States Patent D409051

Huang, Frank T. H. (Suite 804, 8 F1., No. 128, Sec. 3, Ming-Sheng E. Rd., Taipei, TW)
Application Number:
Publication Date:
Filing Date:
Primary Class:
Other Classes:
D07/598, D09/504
Field of Search:
D7/605, D7/608, D7/591, D7/598, D9/503, D9/504, 62/457.1, 62/457.2, 62/457.7, 62/457.8, 62/371, 215/12.1, 215/13.1, 220/410, 220/411, 220/420, 220/425
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US Patent References:
D344212Vacuum jugFebruary, 1994MorganD7/608
D300107Carafe with stopperMarch, 1989TromblyD7/598
D259097BottleMay, 1981KretzD7/598
D199994N/AJanuary, 1965KnodtD7/598

Primary Examiner:
Wallace, Terry A.
Attorney, Agent or Firm:
Bacon & Thomas
1. The ornamental design for vacuum flask, as shown and described.


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 elevational view and the right side elevational view being a mirror image thereof;

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

FIG. 5 is a bottom plan view thereof.