Patent
   D331565
Priority
Sep 24 1991
Filed
Sep 24 1991
Issued
Dec 08 1992
Expiry
Dec 08 2006
Assg.orig
Entity
unknown
2
1
n/a
The ornamental design for a helicopter, as shown and described.

FIG. 1 is a top and front perspective view of a helicopter showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof, the opposite side elevational view being a mirror image of the shown;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is bottom plan view thereof.

Soon, Lai

Patent Priority Assignee Title
D378606, Sep 08 1995 Zamperla, Inc. Helicopter ride
D665720, Jan 11 2012 Sikorsky Aircraft Corporation Rotary wing aircraft
Patent Priority Assignee Title
5102067, Apr 11 1991 UNITED TECHNOLOGIES CORPORATION A CORPORATION OF DELAWARE Integrated helicopter empennage structure
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 30 1991SOON, LAISOON CHENG TOYS ENTERPRISE CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST 0058840189 pdf
Sep 24 1991Soon Cheng Toys Enterprise Co., Ltd.(assignment on the face of the patent)
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