Patent
   D334971
Priority
Sep 05 1990
Filed
Sep 05 1990
Issued
Apr 20 1993
Expiry
Apr 20 2007
Assg.orig
Entity
unknown
10
16
n/a
The ornamental design for a filter medium for an aquarium, as shown and described.

FIG. 1 is a perspective view of a filter medium for an aquarium showing my new design;

FIG. 2 is a front elevational view thereof, the right side elevational view being a mirror image;

FIG. 3 is a rear elevational view thereof, the left side elevational view being identical;

FIG. 4 is a top plan view thereof, the bottom view being a mirror image;

FIG. 5 is a cross-sectional view thereof, taken on line 5--5 of FIG. 4;

FIG. 6 is a cross-sectional view thereof, taken on line 6--6 of FIG. 4; and,

FIG. 7 is a perspective view thereof, on a reduced scale, the broken line drawing of an aquarium is for illustrative purposes only and forms no part of the claimed design.

Tominaga, Kazutoshi

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 01 1990TOMINAGA, KAZUTOSHIKabushiki Kaisha Tominaga Jyushi KogyoshoASSIGNMENT OF ASSIGNORS INTEREST 0054330667 pdf
Sep 05 1990Kabushiki Kaisha Tominaga Jyushi Kogyosho(assignment on the face of the patent)
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