Patent
   D300073
Priority
Feb 10 1986
Filed
Feb 10 1986
Issued
Feb 28 1989
Expiry
Feb 28 2003
Assg.orig
Entity
unknown
21
5
n/a
The ornamental design for a portable extension ramp, as shown and described.

FIG. 1 is a front perspective view of a portable extension ramp showing my new design, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a right side elevational view thereof, showing the ramp in fully closed condition;

FIG. 3 is an enlarged front elevational view thereof;

FIG. 4 is an enlarged rear elevational view thereof;

FIG. 5 is an enlarged right side elevational view thereof, showing the ramp in fully extended condition;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Crump, Robert F.

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Patent Priority Assignee Title
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3870170,
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SU255065,
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