Child-proof lock system
Description
The broken lines showing of the handles of a refrigerator is for illustrative purpose only and forms no part of the claimed design.
Claims
The ornamental design for a child-proof lock system, as shown and described.
Referenced Cited
U.S. Patent Documents
3640558 | February 1972 | Gewertz et al. |
3853343 | December 1974 | Hunter |
4478442 | October 23, 1984 | Martin |
4715629 | December 29, 1987 | Robinson |
5230541 | July 27, 1993 | Nowak |
D376747 | December 24, 1996 | Jackson |
5875660 | March 2, 1999 | Olshausen |
5887286 | March 30, 1999 | Waldron |
D433308 | November 7, 2000 | Winston |
D484026 | December 23, 2003 | Fleury et al. |
7367092 | May 6, 2008 | Dilday |
Patent History
Patent number: D617626
Type: Grant
Filed: Sep 25, 2009
Date of Patent: Jun 15, 2010
Inventor: Waddell A David (Crowley, TX)
Primary Examiner: Prabhakar Deshmukh
Attorney: James E. Walton
Application Number: 29/344,210
Type: Grant
Filed: Sep 25, 2009
Date of Patent: Jun 15, 2010
Inventor: Waddell A David (Crowley, TX)
Primary Examiner: Prabhakar Deshmukh
Attorney: James E. Walton
Application Number: 29/344,210
Classifications
Current U.S. Class:
D8/333