Exhaust ring for manufacturing semiconductors

Equipment for production – distribution – or transformation of ene – Distribution – modification or control – Semiconductor – transistor or integrated circuit

Design Patent

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Design Patent

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D0494552

CLAIM:
We claim the ornamental design for exhaust ring for manufacturing semiconductors, as shown and described.

REFERENCES:
patent: 5310453 (1994-05-01), Fukasawa et al.
patent: D404370 (1999-01-01), Kimura
patent: D404372 (1999-01-01), Ishii
patent: 6068441 (2000-05-01), Raaijmakers et al.
patent: 6155915 (2000-12-01), Raeder
patent: 2003/0017714 (2003-01-01), Taniyama et al.
patent: 2003/0124820 (2003-07-01), Johnsgard et al.
patent: 2004/0025788 (2004-02-01), Ogasawara et al.
patent: 2004/0056017 (2004-03-01), Renken

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