Patent
   D302788
Priority
Mar 09 1987
Filed
Mar 09 1987
Issued
Aug 15 1989
Expiry
Aug 15 2003
Assg.orig
Entity
unknown
1
5
n/a
The ornamental design for a push button lock module for attachment to a door knob, as shown and described.

FIG. 1 is a left-front perspective view of a push button lock module for attachment to door knob showing our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

McGourty, Thomas K., McGourty, Lawrence F.

Patent Priority Assignee Title
D388308, Dec 20 1996 Mas-Hamilton Group Electronic combination lock housing
Patent Priority Assignee Title
3667261,
4027508, Nov 20 1975 Push-button combination lock
4274272, Sep 22 1978 Mechanical digital lock
4640110, Sep 16 1985 KABA ILCO CORP Automatic delay relocking device
D289971, May 30 1985 Carter Associates, Inc. Protective guard for door handle
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