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			 The ornamental design for an ink cartridge, as shown and described. 
			  
			  
			  
			  
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The features shown in broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.
Ishizawa, Taku, Kawate, Hiroyuki, Nose, Hiroshi
| Patent | Priority | Assignee | Title | 
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| 7992984, | Aug 01 2007 | Seiko Epson Corporation | Liquid container | 
| 20070126827, | |||
| D438560, | Jul 16 1999 | Canon Kabushiki Kaisha | Ink tank for printer | 
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| D580107, | May 31 2006 | Seiko Epson Corporation | Ink cartridge | 
| D583861, | May 31 2006 | Seiko Epson Corporation | Ink cartridge | 
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| EM6371370003, | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Apr 20 2012 | ISHIZAWA, TAKU | Seiko Epson Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028108 | /0201 | |
| Apr 20 2012 | KAWATE, HIROYUKI | Seiko Epson Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028108 | /0201 | |
| Apr 20 2012 | NOSE, HIROSHI | Seiko Epson Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028108 | /0201 | |
| Apr 26 2012 | Seiko Epson Corporation | (assignment on the face of the patent) | / | 
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