Patent
   D429224
Priority
Jan 31 1997
Filed
Jul 24 1997
Issued
Aug 08 2000
Expiry
Aug 08 2014
Assg.orig
Entity
unknown
4
3
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I claim the ornamental design for quartz fin heat retaining tube, as shown and described.

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

FIG. 2 is a top plan view thereof.

FIG. 3 a front elevational view thereof.

FIG. 4 a cross sectional view taken along line 4--4 in FIG. 3.

FIG. 5 a cross sectional view taken along line 5--5 in FIG. 3.

FIG. 6 a left side view thereof.

FIG. 7 a right side view thereof.

FIG. 8 a bottom plan view thereof; and.

FIG. 9 a rear elevational view thereof.

Ishii, Katsutoshi

Patent Priority Assignee Title
D551634, Feb 28 2005 Tokyo Electron Limited Wafer-boat for heat-processing of semiconductor wafers
D793974, Sep 29 2015 KOKUSAI ELECTRIC CORPORATION Heater for semiconductor thermal process
D793975, Sep 29 2015 KOKUSAI ELECTRIC CORPORATION Heater for semiconductor thermal process
D795209, Sep 29 2015 KOKUSAI ELECTRIC CORPORATION Heater for semiconductor thermal process
Patent Priority Assignee Title
5303671, Feb 07 1992 Tokyo Electron Limited System for continuously washing and film-forming a semiconductor wafer
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 0088030163 pdf
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