Patent
   D720308
Priority
Nov 18 2011
Filed
May 10 2012
Issued
Dec 30 2014
Expiry
Dec 30 2028
Assg.orig
Entity
unknown
3
31
n/a
The ornamental design for an inner tube for process tube for manufacturing semiconductor wafers, as shown and described.

FIG. 1 is a perspective view of an inner tube for process tube for manufacturing semiconductor wafers showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an enlarged cross-sectional view taken along line 8-8 of FIG. 2; and,

FIG. 9 is another front view thereof, shown in a used condition.

The broken lines shown in the drawings represent portions of the inner tube for process tube for manufacturing semiconductor wafers that form no part of the claimed design.

Endo, Atsushi, Kaneko, Hirofumi

Patent Priority Assignee Title
D742339, Mar 12 2014 KOKUSAI ELECTRIC CORPORATION Reaction tube
D748594, Mar 12 2014 KOKUSAI ELECTRIC CORPORATION Reaction tube
D853979, Dec 27 2017 KOKUSAI ELECTRIC CORPORATION Reaction tube
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 07 2012ENDO, ATSUSHITokyo Electron LimitedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0281870380 pdf
May 09 2012KANEKO, HIROFUMITokyo Electron LimitedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0281870380 pdf
May 10 2012Tokyo Electron Limited(assignment on the face of the patent)
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