USD272469SExpiredUtility

Clean room

76
Assignee: BURLESON AIROLOGY CORPPriority: Nov 2, 1981Filed: Nov 2, 1981Granted: Jan 31, 1984
Est. expiryNov 2, 2001(expired)· nominal 20-yr term from priority
Inventors:Maurice L. Burleson
76
PatentIndex Score
21
Cited by
3
References
1
Claims

Claims

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

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