Patent
   D981969
Priority
Dec 18 2020
Filed
Jun 15 2021
Issued
Mar 28 2023
Expiry
Mar 28 2038
Assg.orig
Entity
unknown
0
16
n/a
The ornamental design for an elastic membrane for semiconductor wafer polishing apparatus, as shown and described.

FIG. 1 is a top perspective view of an elastic membrane for semiconductor wafer polishing apparatus showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof, the rear view being identical;

FIG. 6 is a right-side view thereof, the left-side view being identical;

FIG. 7 is an enlarged cross-sectional end view taken along line 7-7 in FIG. 3 thereof; and,

FIG. 8 is an enlarged detail view of section 8 in FIG. 7 thereof.

Fukushima, Makoto, Nabeya, Osamu, Kato, Yuichi, Akazawa, Kenichi, Owada, Tomoko

Patent Priority Assignee Title
Patent Priority Assignee Title
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Jun 04 2021AKAZAWA, KENICHIEbara CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0567720825 pdf
Jun 04 2021OWADA, TOMOKOEbara CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0567720825 pdf
Jun 04 2021NABEYA, OSAMUEbara CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0567720825 pdf
Jun 04 2021KATO, YUICHIEbara CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0567720825 pdf
Jun 15 2021Ebara Corporation(assignment on the face of the patent)
Jul 01 2021FUKUSHIMA, MAKOTOEbara CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0567720825 pdf
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