Combination lock with backup key

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Description

FIG. 1 is a front perspective view of the combination lock with backup key showing my new design;

FIG. 2 is a front perspective view of the combination lock with backup key of FIG. 1;

FIG. 3 is a front view of the combination lock with backup key of FIG. 1;

FIG. 4 is a left side view of the combination lock with backup key of FIG. 1;

FIG. 5 is a top plan view of the combination lock with backup key of FIG. 1;

FIG. 6 is a right side view of the combination lock with backup key of FIG. 1;

FIG. 7 is a rear view of the combination lock with backup key of FIG. 1; and,

FIG. 8 is a bottom plan view of the combination lock with backup key of FIG. 1.

The broken line showing is included for the purpose of illustrating and forms no part of the claimed design.

Claims

The ornamental design for a combination lock with backup key, as shown and described.

Referenced Cited
U.S. Patent Documents
D372187 July 30, 1996 Ling
D406522 March 9, 1999 Ling
D429620 August 22, 2000 Ho
D437204 February 6, 2001 Kajuch et al.
D461699 August 20, 2002 Lavikainen et al.
D495581 September 7, 2004 Ho
D535548 January 23, 2007 Lin
Patent History
Patent number: D554471
Type: Grant
Filed: Jul 28, 2006
Date of Patent: Nov 6, 2007
Assignee: Alloy Metal Manufactory Ltd. (Shatin, New Territories, Hong Kong)
Inventor: Yat Hung Ho (New Territories)
Primary Examiner: Mitchell Siegel
Attorney: Alix, Yale & Ristas, LLP
Application Number: 29/263,727
Classifications
Current U.S. Class: D8/333