Ballpoint pen
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Description
Claims
The ornamental design for a ballpoint pen, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
| 2153488 | April 1939 | Weisser |
| D151658 | November 1948 | Sams |
| D153905 | May 1949 | Sager |
| 2857882 | October 1958 | Forster |
| D209549 | December 1967 | Amona |
| D338039 | August 3, 1993 | Takahashi |
| D378762 | April 8, 1997 | Kikuchi et al. |
| D390872 | February 17, 1998 | Sunaga |
| D394455 | May 19, 1998 | Izushima |
| D394875 | June 2, 1998 | Izushima |
| D403705 | January 5, 1999 | Izushima et al. |
| D421053 | February 22, 2000 | Izushima |
| D423577 | April 25, 2000 | Baudino et al. |
| D469123 | January 21, 2003 | Briggl et al. |
| D469805 | February 4, 2003 | Liu |
| D475404 | June 3, 2003 | De Bon |
| D503428 | March 29, 2005 | Chen |
| D576210 | September 2, 2008 | Qiu et al. |
| D562894 | February 26, 2008 | Nishida |
| D567288 | April 22, 2008 | Keil |
| D568393 | May 6, 2008 | Bhavnani |
| D569906 | May 27, 2008 | Cetera |
| D575339 | August 19, 2008 | Daida |
| 2040630 | February 1994 | GB |
| 1255132 | November 2005 | JP |
Patent History
Patent number: D595352
Type: Grant
Filed: Feb 28, 2008
Date of Patent: Jun 30, 2009
Assignee: Kabushiki Kaisha Pilot Corporation (Chuo-ku)
Inventor: Akinori Ikeda (Tokyo)
Primary Examiner: Elizabeth A Albert
Assistant Examiner: Karen E Eldridge Powers
Attorney: Sughrue Mion, PLLC
Application Number: 29/304,273
Type: Grant
Filed: Feb 28, 2008
Date of Patent: Jun 30, 2009
Assignee: Kabushiki Kaisha Pilot Corporation (Chuo-ku)
Inventor: Akinori Ikeda (Tokyo)
Primary Examiner: Elizabeth A Albert
Assistant Examiner: Karen E Eldridge Powers
Attorney: Sughrue Mion, PLLC
Application Number: 29/304,273
Classifications
Current U.S. Class:
Lateral Striation (D19/48)