U.S. patent number D933,031 [Application Number D/750,935] was granted by the patent office on 2021-10-12 for seal member for semiconductor production apparatus. This patent grant is currently assigned to Valqua, Ltd.. The grantee listed for this patent is Valqua, Ltd.. Invention is credited to Ippei Nakagawa, Nobuhiro Yoshida.
United States Patent | D933,031 |
Yoshida , et al. | October 12, 2021 |
Inventors: | Yoshida; Nobuhiro (Gojo, JP), Nakagawa; Ippei (Gojo, JP) | ||||||||||
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Applicant: |
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Assignee: | Valqua, Ltd. (Tokyo,
JP) |
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Appl. No.: | D/750,935 | ||||||||||
Filed: | September 17, 2020 |
Application Number | Filing Date | Patent Number | Issue Date | ||
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35507483 | Apr 1, 2019 | D909322 | |||
Oct 12, 2018 [JP] | 2018-022466 | |||
Oct 12, 2018 [JP] | 2018-022467 | |||
Oct 12, 2018 [JP] | 2018-022468 | |||
Oct 12, 2018 [JP] | 2018-022469 | |||
Current U.S. Class: | D13/182 |
Current International Class: | 1303 |
Field of Search: | ;D13/199 ;D4/137 ;D9/416 ;D23/269 ;D15/7 |
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"High Performance FKM" found by RMS on the internet at: https://valqua-america.com/products/semiconductor_b.html reference dated Mar. 24, 2021. cited by examiner. |
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