Patent
   D542621
Priority
Oct 27 2004
Filed
Oct 27 2004
Issued
May 15 2007
Expiry
May 15 2021
Assg.orig
Entity
unknown
1
12
n/a
We claim the ornamental design for a door lock and operation mechanism, as shown and described.

FIG. 1 is a front perspective view of a door lock operation mechanism showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view of FIG. 1;

FIG. 4 is a front elevational view of FIG. 2;

FIG. 5 is a top plan view thereof, the undisclosed bottom is not part of the claimed design; and,

FIG. 6 is a side elevational view thereof, the opposite side is a mirror image.

The broken lines are included for the purposes of illustration and form no part of the claimed design.

Deng, Sheng Bill, Deng, Sheng Yung

Patent Priority Assignee Title
D594745, Apr 24 2006 JOHNSON & JOHNSON CONSUMER INC Bottle holder
Patent Priority Assignee Title
3187528,
5083122, Feb 21 1989 HYDRO-DYNE ENGINEERING, INC Programmable individualized security system for door locks
5198643, Feb 26 1991 COMPUTERIZED SECURITY SYSTEM, INCORPORATED, TROY, MI, A CORP OF MI Adaptable electronic key and lock system
5475996, Aug 29 1994 Electromagnetic door lock
5841347, Aug 16 1995 Duk Poong Mool San Co., Ltd. One-touch doorlock device with function of outputting speech message
5923264, Dec 22 1995 Schlage Lock Company LLC; Harrow Products LLC Multiple access electronic lock system
6145353, Feb 02 1999 KABA ILCO INC Electronically activated door lock assembly
6374652, Aug 20 1999 Keico, Ltd. Locking doorknob which recognizes a finger print
6378344, Sep 18 2000 U-CODE, INC Combination lock handle
D351982, Aug 06 1993 Digital or key card operated electronic door lock
D429139, Apr 29 1999 Kumjin Hightech Co., Ltd. Doorlock for recognizing a fingerprint
D501388, Aug 13 2002 Kaba Ilco Inc. Electronic door lock
Executed onAssignorAssigneeConveyanceFrameReelDoc
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule