Patent
   D301302
Priority
Jul 20 1987
Filed
Jul 20 1987
Issued
May 30 1989
Expiry
May 30 2003
Assg.orig
Entity
unknown
3
4
n/a
The ornamental design for a key for door locks, as shown and described.

FIG. 1 is a perspective view of a key for door locks showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a side perspective view of a key for door locks showing an alternate embodiment of my new design;

FIG. 9 is a left side elevational view thereof; and

FIG. 10 is a right side elevational view thereof.

Yamashita, Yukio

Patent Priority Assignee Title
D334528, Mar 15 1991 Samsonite Corporation; ASTRUM INTERNATIONAL CORP Key for a lock
D538134, Mar 24 2004 Key
D539116, Mar 24 2004 D-KEY INC Key
Patent Priority Assignee Title
4616491, May 30 1984 Key operated electronic lock
235189,
D259994, Nov 08 1979 Unican Security Systems, Ltd. Key blank
D271279, Feb 05 1981 Illuminable key handle
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 08 1987YAMASHITA, YUKIOMASCO BUILDING PRODUCTS CORP ASSIGNMENT OF ASSIGNORS INTEREST 0050260736 pdf
Jul 20 1987Masco Building Products Corp.(assignment on the face of the patent)
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