Patent
   D428858
Priority
Jan 31 1997
Filed
Jul 24 1997
Issued
Aug 01 2000
Expiry
Aug 01 2014
Assg.orig
Entity
unknown
7
4
n/a
The ornamental design for a quartz fin heat retaining tube, as shown and described.

FIG. 1 a perspective view of a quartz fin heat retaining tube.

FIG. 2 a front elevational view thereof, the rear elevational view being a mirror image of the front view.

FIG. 3 a top plan view thereof.

FIG. 4 a bottom plan view thereof.

FIG. 5 a left side view thereof.

FIG. 6 a right side view thereof.

FIG. 7 a cross sectional view thereof taken along line 7--7 in FIG. 3; and,

FIG. 8 a cross sectional view thereof taken along line 8--8 in FIG. 2.

Ishii, Katsutoshi

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Patent Priority Assignee Title
5303671, Feb 07 1992 Tokyo Electron Limited System for continuously washing and film-forming a semiconductor wafer
5482558, Mar 18 1993 Tokyo Electron Limited Heat treatment boat support
D361752, Sep 17 1993 Tokyo Electron Kabushiki Kaisha; Tokyo Electron Tohoku Kabushiki Kaisha Wafer boat or rack for holding semiconductor wafers
D380454, May 30 1995 Tokyo Electron Limited Wafer boat
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 24 1997Tokyo Electron Limited(assignment on the face of the patent)
Nov 08 1997ISHII, KATSUTOSHITokyo Electron LimitedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0088030001 pdf
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