USD326144SExpiredUtility

Room air filter

27
Individually held — no corporate assignee on recordPriority: Dec 6, 1990Filed: Dec 6, 1990Granted: May 12, 1992
Est. expiryDec 6, 2010(expired)· nominal 20-yr term from priority
Inventors:George Havrilla
27
PatentIndex Score
1
Cited by
5
References
1
Claims

Claims

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

Join the waitlist — get patent alerts

Track USD326144S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.