Ballpoint pen

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

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

FIG. 2 is a right view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is an angled front view thereof;

FIG. 9 is a right view thereof;

FIG. 10 is a left side view thereof;

FIG. 11 is a front view thereof;

FIG. 12 is a rear side view thereof;

FIG. 13 is a top view thereof; and,

FIG. 14 is a bottom view thereof.

Patent	Priority	Assignee	Title
D258219,	Dec 15 1978	Pentel Kabushiki Kaisha	Automatic pencil or similar article
D319845,	Mar 13 1989	J.S. Staedtler GmbH & Co.	Mechanical pen
D339822,	Jul 21 1989	SCHWAN-STABILO SCHWANHAUSSER GMBH & CO ,	Writing instruments
D404428,	Jun 25 1998	Kotobuki & Co., Ltd.	Writing instrument
D441018,	Aug 11 2000	Inform Plastik GmbH	Writing implement
D471590,	Jan 24 2002	Quadrinvest S.p.A.	Writing and drawing instrument
D489090,	Nov 21 2002	Jacob Ritter GmbH	Ball point 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
D504465,	Jun 02 2003	Pentel Kabushiki Kaisha	Cap for a writing instrument
D507811,	Jun 11 2003	Pentel Kabushiki Kaisha	Ball point pen
D508264,	Apr 24 2004	Jacob Ritter GmbH	Ball point pen
D535692,	Jun 03 2005	Sintesi Pen, Proizvodja in trgovina, d.o.o	Pen
D538853,	Dec 29 2004	Ritter-Pen GmbH	Ballpoint pen
D552677,	Oct 12 2005	Ritter-Pen	Ballpoint pen
D567287,	Mar 28 2006	Anand International	Pen
D567856,	Oct 12 2005	Ritter-Pen GmbH	Ballpoint pen
D572758,	Dec 06 2005	Ritter-Pen GmbH	Ballpoint pen
D575817,	Aug 08 2006	Ritter-Pen GmbH	Ballpoint pen
D591793,	Aug 23 2007		Pen
D629846,	May 02 2009	Ritter Pen	Ballpoint pen
D646716,	Nov 02 2009	Ritter-Pen GmbH	Ballpoint pen
D648387,	Jul 24 2010	Beifa Group Co., Ltd.	Pen
D650012,	Oct 23 2009	Ritter-Pen GmbH	Ballpoint pen
D656991,	Oct 23 2009	Ritter Pen GmbH	Ballpoint pen

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Apr 26 2013	LOSEL, HELMUT	Ritter-Pen GmbH	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	033495	0173	pdf
May 13 2013		Ritter-Pen GmbH	(assignment on the face of the patent)

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