Dual chamber cartridge

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Description

FIG. 1 is a perspective view showing our new design for a dual chamber cartridge;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.

Claims

The ornamental design for a dual chamber cartridge, as shown and described.

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Patent History
Patent number: D636500
Type: Grant
Filed: Oct 1, 2008
Date of Patent: Apr 19, 2011
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Scott D. Gullicks (Apple Valley, MN), Jeffrey R. Janssen (Ho Chi Minh), Mark F. Schulz (Lake Elmo, MN), Ryan Patrick Simmers (Cottage Grove, MN)
Primary Examiner: Thomas J Johannes
Attorney: Philip P. Soo
Application Number: 29/325,462