USD270276SExpiredUtility

Ventilator

33
Assignee: FLETTNER VENTILATOR LTDPriority: Jul 25, 1980Filed: Jan 23, 1981Granted: Aug 23, 1983
Est. expiryJul 25, 2000(expired)· nominal 20-yr term from priority
Inventors:Derek V. SternNoel W. Fleury
33
PatentIndex Score
4
Cited by
2
References
1
Claims

Claims

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

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