USD344793SExpiredUtility

Filter unit for intake air of helicopter turbine engines

22
Individually held — no corporate assignee on recordPriority: Dec 6, 1991Filed: May 1, 1992Granted: Mar 1, 1994
Est. expiryDec 6, 2011(expired)· nominal 20-yr term from priority
Inventors:Lindsay D. Rose
22
PatentIndex Score
1
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a filter unit for intake air of helicopter turbine engines, as shown and described.

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