Patent
   D511291
Priority
Apr 14 2004
Filed
Apr 14 2004
Issued
Nov 08 2005
Expiry
Nov 08 2019
Assg.orig
Entity
unknown
9
36
n/a
The ornamental design for a doorknob, as shown and described.

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.

van Handel, Mark

Patent Priority Assignee Title
10890015, Sep 21 2018 KNOX ASSOCIATES, INC DBA KNOX COMPANY Electronic lock state detection systems and methods
11598121, Sep 21 2018 KNOX Associates, Inc. Electronic lock state detection systems and methods
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D522846, Jun 17 2005 DECOLIN INC End cap for support rod
D522847, Jun 17 2005 DECOLIN INC End cap for support rod
D525115, May 19 2005 DECOLIN INC End cap for support rod
D633660, Jan 27 2010 End piece for a riding aid
D733263, Jul 31 2012 Mitsubishi Cable Industries, Ltd. Seal element
Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 14 2004Master Lock Company(assignment on the face of the patent)
Apr 29 2004HANDEL, MARK VANMaster Lock CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0147690746 pdf
Aug 15 2005Master Lock CompanyMaster Lock Company LLCCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0184200873 pdf
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