Door lock and operation mechanism
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
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