USD189463S - Helicopter - Google Patents

Description

United States Patent 0 mg Des-189,463

Patented Dec. 20, 1960 HELICOPTER Donald E. Walters, Calabasas, Calif., assignor to Lockheed Aircraft Corporation, Burbank, Calif.

Filed Feb. 3, 1960, Ser. No. 59,250

Term of patent 14 years (Cl. D711) Figure 1 is a perspective view of a helicopter embodying my new design;

Figure 2 is a front elevational view thereof;

Figure 3 is a top plan view thereof; and

Figure 4 is a side elevational view thereof.

The dominant features of my design reside in those portions shown in full lines.

I claim:

The ornamental design for a helicopter, substantially as shown and described Des 189,463

PAGE. 2

References Cited in the file of this patent UNITED STATES PATENTS Wibault July 6, 1948 OTHER REFERENCES Aviation Week, Jan. 13, 1958, page 99, Chance Vought Aircraft Co., F8U-I.

Janes: All the Worlds Aircraft, 1958-1959, page 256, Beechcraft Jet Mentor and F50 Twin-Bonanza.

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