Patent
   D297005
Priority
Mar 13 1986
Filed
Mar 13 1986
Issued
Aug 02 1988
Expiry
Aug 02 2002
Assg.orig
Entity
unknown
2
4
n/a
The ornamental design for a helicopter, as shown.

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

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

Whyte, Andrew C.

Patent Priority Assignee Title
10562641, Oct 10 2012 Sikorsky Aircraft Corporation AFT exhaust system for rotary wing aircraft
7731121, Sep 28 2004 Textron Innovations Inc Propulsive anti-torque system for rotorcraft
Patent Priority Assignee Title
3807662,
D256347, May 26 1977 Fairchild Industries, Inc. Aircraft
D291194, Nov 13 1984 Northrop Corporation Aircraft
DE908941,
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Mar 12 1986WHYTE, ANDREW C UNITED TECHNOLOGIES CORPORATION, A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST 0045720436 pdf
Mar 13 1986United Technologies Corporation(assignment on the face of the patent)
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