Roll bar safety frame for a tractor

The ornamental design for a roll bar safety frame for a tractor, as shown and described.

FIG. 1 is a perspective view of a roll bar safety frame for a tractor showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a rear elevational view thereof.

Patent	Priority	Assignee	Title
D365351,	Aug 18 1994		Tractor roll bar
D815155,	Feb 28 2017	BLUE LEAF I P , INC	Roll-over protective structure for a construction machine
D920883,	Jun 14 2019		Automobile roll bar

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Nov 04 1977		Susan Beck, White	(assignment on the face of the patent)

n/a

Date	Maintenance Fee Events

n/a

Date	Maintenance Schedule