USD193492S - Helicopter - Google Patents

Description

United States Patent Ofiice Des. 193,492 Patented Aug. 28,, 1962 HELICOPTER George J. Howard, Fairfield, and Edward S. Hibyan, Milford, COlllL, assignors to United Aircraft Corporation, East Hartford, Conn., a corporation of Delaware Filed Sept. 6, 1960, Ser. No. 62,041

Term of patent 14 years (Cl. D71-1) FIG. 1 is a perspective view of a helicopter embodying our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is an enlarged cross-sectional view taken on the line 55 of FIG. 3 in the direction of the arrows.

The dominant features of our design reside in the portions shown in full lines. The conventional symmetrical rotor blades shown in broken lines are fragmenta'rily shown for convenience of illustration only.

We claim: The ornamental design for a helicopter, substantially as shown and described.

References Cited in the file of this patent UNITED STATES PATENTS Sikorsky July 19, 1960 OTHER REFERENCES Interavia, vol. 14, July-December 1959, December, page 1493, Sikorsky 8-60, at top left of page and Westland Westminster at center left of page.

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