Protective helmet for athletes

The ornamental design for a protective helmet for athletes, as shown and described.

FIG. 1 is a side elevational view of the protective helmet for athletes showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof; and

FIG. 4 is a rear elevational view thereof.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Sep 02 1980	GOODING ELWYN R	REGENTS OF THE UNIVERSITY OF MICHIGAN, THE	ASSIGNMENT OF ASSIGNORS INTEREST	003800	0974	pdf
Sep 11 1980		The Regents of the University of Michigan	(assignment on the face of the patent)

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