Door lock and operation mechanism

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Description

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.

Claims

We claim the ornamental design for a door lock and operation mechanism, as shown and described.

Referenced Cited
U.S. Patent Documents
3187528 June 1965 Check
5083122 January 21, 1992 Clark
5198643 March 30, 1993 Miron et al.
D351982 November 1, 1994 Chen
5475996 December 19, 1995 Chen
5841347 November 24, 1998 Kim
5923264 July 13, 1999 Lavelle et al.
D429139 August 8, 2000 Ahn
6145353 November 14, 2000 Doucet
6374652 April 23, 2002 Hwang
6378344 April 30, 2002 Gartner
D501388 February 1, 2005 Carpintero
Patent History
Patent number: D542621
Type: Grant
Filed: Oct 27, 2004
Date of Patent: May 15, 2007
Inventors: Sheng Bill Deng (Salem, NH), Sheng Yung Deng (Salem, NH)
Primary Examiner: Paula A. Greene
Attorney: Davis & Bujold, P.L.L.C.
Application Number: 29/215,922
Classifications
Current U.S. Class: D8/307