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
D552677,	Oct 12 2005	Ritter-Pen	Ballpoint pen
D559316,	Sep 14 2005	Ritter-Pen GmbH	Ballpoint pen
D561830,	Sep 14 2005	Ritter-Pen GmbH	Ballpoint pen
D567856,	Oct 12 2005	Ritter-Pen GmbH	Ballpoint pen
D568937,	Sep 14 2005	Ritter-Pen GmbH	Ballpoint pen
D572758,	Dec 06 2005	Ritter-Pen GmbH	Ballpoint pen
D573642,	Dec 06 2005	Ritter Pen GmbH	Ballpoint pen
D577069,	Feb 26 2007	Sun Most, LLC	Pen
D578573,	Feb 26 2007	Sun Most, LLC	Pen
D589556,	Sep 22 2006	KOTOBUKI & CO , LTD	Housing for writing instrument or eraser
D591350,	Aug 07 2006	Senator GmbH & Co. KGaA	Writing instrument
D610197,	Nov 16 2007	Ritter-Pen GmbH	Ballpoint pen
D620047,	Jan 03 2008	Senator GmbH & Co., KGaA	Writing instrument
D620525,	Sep 12 2003	Senator GmbH & Co KGaA	Writing instrument component
D621876,	Aug 31 2009	SANFORD, L P	Writing instrument
D626997,	Aug 31 2009	SANFORD, L P	Writing instrument
D629846,	May 02 2009	Ritter Pen	Ballpoint pen
D631508,	Oct 23 2009	Klio-Eterna Schreibgerate GmbH & Co. KG	Writing pen
D646325,	Mar 23 2010	Ritter-Pen GmbH	Ballpoint pen
D650012,	Oct 23 2009	Ritter-Pen GmbH	Ballpoint pen
D656992,	Aug 12 2010	Klio-Eterna Schreibgerate GmbH & Co. KG; KLIO-ETERNA SCHREIBGERATE GMBH & CO KG	Pen
D663772,	Sep 16 2010	Ritter Pen GmbH	Ballpoint pen
D670333,	Sep 16 2010	Ritter-Pen GmbH	Ballpoint pen
D700238,	Apr 20 2012	Klio-Eterna Schreibgeräte GmbH & Co. KG	Ballpoint pen

Patent	Priority	Assignee	Title
D319845,	Mar 13 1989	J.S. Staedtler GmbH & Co.	Mechanical pen
D395674,	Aug 12 1997	INOXCROM, INC	Pen
D456845,	Sep 01 2000		Writing instrument
D485574,	Jun 05 2000	Merz & Krell GmbH & Co KGaA	Writing utensil
D494218,	Nov 20 2003	Anand International	Retractable pen
D498496,	Apr 07 2004	Klio-Eterna Schreibgerate GmbH & Co. KG	Pen top
D501031,	Dec 31 2003	Quadrinvest S.p.A.	Pen
D508076,	Oct 05 2004		Combination pen and notepad holder
D508264,	Apr 24 2004	Jacob Ritter GmbH	Ball point pen
D512459,	Jan 13 2005	Rover Writing Instruments	Retractable twist action ballpen
D518523,	Sep 23 2004	Cotapaxi Inc.	Pen

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jun 10 2005	LOSEL, HELMUT	Ritter-Pen GmbH	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	016250	0949	pdf
Jun 24 2005		Ritter-Pen GmbH	(assignment on the face of the patent)

n/a

Date	Maintenance Fee Events

n/a

Date	Maintenance Schedule