USD247509SExpiredUtility
Turbine ventilator
Individually held — no corporate assignee on recordPriority: Aug 16, 1976Filed: Aug 16, 1976Granted: Mar 14, 1978
Est. expiryAug 16, 1996(expired)· nominal 20-yr term from priority
Inventors:Donald L. Rousey
26
PatentIndex Score
2
Cited by
23
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a turbine ventilator, as shown and described.
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