USD258686SExpiredUtility
Combined air filter and freshener
Individually held — no corporate assignee on recordPriority: Jan 15, 1979Filed: Jan 15, 1979Granted: Mar 24, 1981
Est. expiryJan 15, 1999(expired)· nominal 20-yr term from priority
Inventors:Kenneth O. Johnson
74
PatentIndex Score
11
Cited by
18
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a combined air filter and freshener, substantially as shown and described.
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