USD336888SExpiredUtility

Helicopter

44
Assignee: UNITED TECHNOLOGIES CORPPriority: Aug 20, 1991Filed: Aug 20, 1991Granted: Jun 29, 1993
Est. expiryAug 20, 2011(expired)· nominal 20-yr term from priority
Inventors:Mark R. AlberWilliam H. Harper, Jr.
44
PatentIndex Score
4
Cited by
3
References
1
Claims

Claims

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

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