Patent
   D276603
Priority
Feb 13 1980
Filed
Feb 13 1980
Issued
Dec 04 1984
Expiry
Dec 04 1998
Assg.orig
Entity
unknown
0
7
n/a
The ornamental design for a helicopter step, substantially as shown.

FIG. 1 is a perspective view of the helicopter step showing our new design;

FIG. 2 is an end view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof.

Kent, David W., McNab, Robert B., Wolfe, James A.

Patent Priority Assignee Title
Patent Priority Assignee Title
2991118,
3904155,
4020920, Jun 28 1976 ENVIRONMENTAL EQUIPMENT CORPORATION, A CORP OF CA Retractable transit coach step
169635,
194399,
229045,
D243854, Nov 28 1975 Boat steps
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