Doorknob

- Master Lock Company
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Description

FIG. 1 is a back view of a doorknob of the new design;

FIG. 2 is a top view of the doorknob of FIG. 1, the bottom view being identical;

FIG. 3 is a front view of the doorknob of FIG. 1;

FIG. 4 is a perspective view of the doorknob of FIG. 1;

FIG. 5 is a back view of a second embodiment of a doorknob of the new design;

FIG. 6 is a top view of the doorknob of FIG. 5, the bottom view being identical;

FIG. 7 is a front view of the doorknob of FIG. 5; and,

FIG. 8 is a perspective view of the doorknob of FIG. 5.

The portions of the Figures shown in phantom lines are not part of the claimed design but are for illustration only.

Claims

The ornamental design for a doorknob, as shown and described.

Referenced Cited
U.S. Patent Documents
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Other references
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Patent History
Patent number: D511291
Type: Grant
Filed: Apr 14, 2004
Date of Patent: Nov 8, 2005
Assignee: Master Lock Company (Oak Creek, WI)
Inventor: Mark Van Handel (Milwaukee, WI)
Primary Examiner: Prabhakar Deshmukh
Assistant Examiner: Jean E. McCormick
Attorney: Calfee, Halter & Griswold, LLP
Application Number: 29/203,383
Classifications
Current U.S. Class: D8/310