Patent
   D755619
Priority
Jan 30 2015
Filed
Jan 30 2015
Issued
May 10 2016
Expiry
May 10 2030
Assg.orig
Entity
unknown
0
22
n/a
The ornamental design for a ball screw, as shown and described.

FIG. 1 is a front and right side perspective view of a ball screw;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged view taken along line 8-8 in FIG. 2; and,

FIG. 9 is an enlarged schematic cross-sectional view thereof taken along line 9-9 of FIG. 2.

The broken lines in the drawing represent the environment of the claimed design and form no part thereof.

Iwasaki, Yoshimi

Patent Priority Assignee Title
Patent Priority Assignee Title
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Sep 17 2014IWASAKI, YOSHIMIKURODA PRECISION INDUSTRIES LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0348510574 pdf
Jan 30 2015Kuroda Precision Industries Ltd.(assignment on the face of the patent)
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