Ballpoint pen

The ornamental design for a ballpoint pen, as shown and described.

FIG. 1 is a front view of a ballpoint pen of the present invention;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom view thereof.

Patent	Priority	Assignee	Title
D319844,	Mar 13 1989	J.S. Staedtler GmbH & Co.	Ball point pen
D319845,	Mar 13 1989	J.S. Staedtler GmbH & Co.	Mechanical pen
D395674,	Aug 12 1997	INOXCROM, INC	Pen
D409659,	Jun 18 1998	TOMBOW PENCIL CO , LTD	Writing instrument
D447174,	Jun 30 2000	Shachihata Inc.	Felt pen
D456845,	Sep 01 2000		Writing instrument
D485574,	Jun 05 2000	Merz & Krell GmbH & Co KGaA	Writing utensil
D485575,	Aug 05 2002	GREETING PENS LLC	Pen
D490851,	Nov 01 2002	Jacob Ritter GmbH	Ball point pen
D494218,	Nov 20 2003	Anand International	Retractable pen
D498496,	Apr 07 2004	Klio-Eterna Schreibgerate GmbH & Co. KG	Pen top
D500522,	Oct 22 2003	Jacob Ritter GmbH	Ball point pen
D508264,	Apr 24 2004	Jacob Ritter GmbH	Ball point pen
D538853,	Dec 29 2004	Ritter-Pen GmbH	Ballpoint pen
D539348,	Aug 03 2005	SCRIBE OPCO, INC	Writing instrument
D540387,	Dec 29 2004	Ritter-Pen GmbH	Ballpoint pen
D541343,	Dec 29 2004	Ritter-Pen GmbH	Ballpoint pen

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Feb 13 2006	LOESEL, HELMUT	Ritter-Pen GmbH	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	017321	0321	pdf
Mar 03 2006		Ritter-Pen	(assignment on the face of the patent)

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