USD423463SExpiredUtility

Quartz process tube

79
Assignee: TOKYO ELECTRON LTDPriority: Jan 31, 1997Filed: Jul 24, 1997Granted: Apr 25, 2000
Est. expiryJan 31, 2017(expired)· nominal 20-yr term from priority
Inventors:Testuya HanagataShingo Watanabe
79
PatentIndex Score
28
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a quartz process tube, as shown.

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