Patent
   D301831
Priority
Jul 20 1987
Filed
Jul 20 1987
Issued
Jun 27 1989
Expiry
Jun 27 2003
Assg.orig
Entity
unknown
4
4
n/a
The ornamental design for a key for door locks, as shown and described.

FIG. 1 is side 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;

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.

McCaa, Eugene

Patent Priority Assignee Title
D332388, Jan 10 1991 Schlage Lock Company Key
D368845, Dec 30 1993 Winloc AG Key
D370168, Dec 30 1993 WINLOG AG Key
D370169, Dec 30 1993 Winloc AG 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 1987MC CAA, EUGENEMASCO BUILDING PRODUCTS CORP ASSIGNMENT OF ASSIGNORS INTEREST 0050460185 pdf
Jul 20 1987Masco Building Products Corp.(assignment on the face of the patent)
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