Dual chamber cartridge

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Description

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

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.

Claims

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

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Patent History
Patent number: D648863
Type: Grant
Filed: Mar 8, 2011
Date of Patent: Nov 15, 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 Johannes
Attorney: Philip P. Soo
Application Number: 29/387,015