Ballpoint pen
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- REVERSIBLY THERMOCHROMIC COMPOSITION AND REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT ENCAPSULATING THE SAME
- Writing tool
Description
Claims
The ornamental design for a ballpoint pen, as shown and described.
Referenced Cited
U.S. Patent Documents
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D855107 | July 30, 2019 | Briggl |
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Patent History
Patent number: D877250
Type: Grant
Filed: Jun 6, 2018
Date of Patent: Mar 3, 2020
Assignee: KABUSHIKI KAISHA PILOT CORPORATION (Tokyo)
Inventor: Genki Iwao (Tokyo)
Primary Examiner: Elizabeth A. Albert
Application Number: 29/650,400
Type: Grant
Filed: Jun 6, 2018
Date of Patent: Mar 3, 2020
Assignee: KABUSHIKI KAISHA PILOT CORPORATION (Tokyo)
Inventor: Genki Iwao (Tokyo)
Primary Examiner: Elizabeth A. Albert
Application Number: 29/650,400
Classifications
Current U.S. Class:
D19/171;
D19/914;
D19/916