USD317923SExpiredUtility

Aircraft engine oil sump

54
Individually held — no corporate assignee on recordPriority: Apr 17, 1989Filed: Apr 17, 1989Granted: Jul 2, 1991
Est. expiryApr 17, 2009(expired)· nominal 20-yr term from priority
Inventors:Burton M. Barrett
54
PatentIndex Score
13
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an aircraft engine oil sump, as shown.

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