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Patent
D918848
Priority
Jul 18 2019
Filed
Dec 27 2019
Issued
May 11 2021
Expiry
May 11 2036
Assg.orig
Entity
unknown
11
40
n/a
The ornamental design for a retainer of ceiling heater for semiconductor fabrication apparatus, as shown and described.
FIG. 1 is a front, top and right side perspective view of a retainer of ceiling heater for semiconductor fabrication apparatus showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a rear elevational view.
Kosugi, Tetsuya , Yamaguchi, Takatomo , Sugiura, Shinobu
Patent
Priority
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Date
Maintenance Fee Events
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Date
Maintenance Schedule
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