Evacuated air chamber

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Description

FIG. 1 is a perspective view of an evacuated air chamber showing the new design;

FIG. 2 is a front elevation view, the rear elevation view, the right side elevation view and the left side elevation view being identical;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the evacuated air chamber that form no part of the claimed design.

Claims

The ornamental design for an evacuated air chamber, as shown and described.

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Patent History
Patent number: D777315
Type: Grant
Filed: Apr 29, 2015
Date of Patent: Jan 24, 2017
Assignee: QuinTron Instrument Company, Inc. (Milwaukee, WI)
Inventors: Norbert John Thomas Christman (Wauwatosa, WI), Steven D Hamilton (Greenfield, WI), Katherine M Ross (West Allis, WI)
Primary Examiner: Barbara Fox
Assistant Examiner: Lilyana Bekic
Application Number: 29/525,440