USD290491SExpiredUtility
Freon recovery and purification unit
Individually held — no corporate assignee on recordPriority: Jul 25, 1984Filed: Jul 25, 1984Granted: Jun 23, 1987
Est. expiryJul 25, 2004(expired)· nominal 20-yr term from priority
Inventors:L. A. Goddard
55
PatentIndex Score
7
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a freon recovery and purification unit, as shown and described.
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