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The ornamental design for a helicopter, as shown and described. |
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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.
| 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 |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 30 1991 | SOON, LAI | SOON CHENG TOYS ENTERPRISE CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 005884 | /0189 | |
| Sep 24 1991 | Soon Cheng Toys Enterprise Co., Ltd. | (assignment on the face of the patent) | / |
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