Patent
   D323628
Priority
Apr 25 1989
Filed
Apr 25 1989
Issued
Feb 04 1992
Expiry
Feb 04 2006
Assg.orig
Entity
unknown
2
16
n/a
The ornamental design for a semiconductor wafer measuring instrument, as shown and described.

FIG. 1 is a top, front and right side perspective view of a semiconductor wafer measuring instrument showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view, the left side elevational view being a mirror image;

FIG. 4 is a top plan view;

FIG. 5 is a rear elevational view; and

FIG. 6 is a bottom plan view thereof.

Takao, Itaru

Patent Priority Assignee Title
D350490, Oct 08 1992 TOKYO ELELCTRON KABUSHIKI KAISHA Semiconductor wafer testing apparatus
D935424, May 06 2019 Lam Research Corporation Semiconductor wafer processing tool
Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 05 1989TAKAO, ITARUTOKYO ELECTRON LIMITED A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0058720746 pdf
Apr 25 1989Tokyo Electron Limited(assignment on the face of the patent)
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