USD303166SExpiredUtility

Clean room safety hood

80
Individually held — no corporate assignee on recordPriority: Aug 25, 1986Filed: Aug 25, 1986Granted: Aug 29, 1989
Est. expiryAug 25, 2006(expired)· nominal 20-yr term from priority
Inventors:Wyman H. StackhouseIan M. Williamson
80
PatentIndex Score
19
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a clean room safety hood, as shown.

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