Patent
   D423326
Priority
May 18 1999
Filed
May 18 1999
Issued
Apr 25 2000
Expiry
Apr 25 2014
Assg.orig
Entity
unknown
19
12
n/a
The ornamental design for a door latch, as shown and described.

FIG. 1 is a front perspective view of a door latch having the inventive ornamental design;

FIG. 2 is a top view of the door latch of FIG. 1;

FIG. 3 is a bottom view of the door latch of FIG. 1;

FIG. 4 is a front view of the door latch of FIG. 1 with phantom lines representing door latch, card reader slot, and LED windows omitted for clarity; and,

FIG. 5 is a side view of the door latch of FIG. 1.

Any broken line illustration in the drawing disclosure is not part of the design sought to be patented.

FIGS. 2-5 are shown on an enlarged scale.

Moon, Charles W., Mitchell, Edward D.

Patent Priority Assignee Title
D517898, Aug 25 2004 ROYAL BANK OF CANADA Handleset escutcheon
D518354, Aug 25 2004 ROYAL BANK OF CANADA Handleset escutcheon
D526882, Aug 25 2004 ROYAL BANK OF CANADA Doorknob
D530590, Aug 25 2004 ROYAL BANK OF CANADA Handleset grip
D534784, Aug 25 2004 ROYAL BANK OF CANADA Lever
D556544, Dec 06 2006 Robert Douglas, Wood Wall plate
D578866, Oct 26 2007 BEST ACCESS SOLUTIONS, INC Escutcheon
D597821, Feb 09 2007 Sargent Manufacturing Company Companion escutcheons
D601001, Feb 09 2007 Sargent Manufacturing Company Companion escutcheons
D601002, Feb 09 2007 Sargent Manufacturing Company Companion escutcheons
D601003, Feb 09 2007 Sargent Manufacturing Company Companion escutcheons
D602762, Feb 09 2007 Sargent Manufacturing Company Companion escutcheons
D611799, Jul 02 2009 Skytron, LLC Wallplate cover
D673838, May 06 2011 ALLGAIN PTY LTD; ALLEGION AUSTRALIA PTY LTD Escutcheon
D675081, May 06 2011 ALLGAIN PTY LTD; ALLEGION AUSTRALIA PTY LTD Escutcheon
D675082, May 06 2011 ALLGAIN PTY LTD; ALLEGION AUSTRALIA PTY LTD Escutcheon
D675083, May 06 2011 ALLGAIN PTY LTD; ALLEGION AUSTRALIA PTY LTD Escutcheon
D909850, Aug 07 2018 BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. Smart door lock
D916579, Aug 07 2018 BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. Smart door lock
Patent Priority Assignee Title
3688531,
4109948, Aug 09 1976 TRU-FORM TOOL & MFG INDUSTRIES, INC Plastic latch bolt for door lock
4561684, Jan 27 1983 Schlage Lock Company Automatic deadbolt
4679416, Aug 06 1984 R. R. Brink Locking Systems, Inc. Trigger and latch bolt assembly
4739638, Feb 03 1987 Bi-directional deadlock
4873853, Mar 23 1989 STANLEY SECURITY SOLUTIONS, INC Escutcheon assembly
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D334881, Aug 05 1991 Wallplate
D345684, Jul 28 1992 La Compagnie Ideal Security Inc. Combined handle and escutcheon
D391828, Aug 09 1996 Newfrey LLC Handleset
D393994, Jan 29 1996 Hewi Heinrich Wilke GmbH Handle for doors
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 22 1999MOON, CHARLES W WINFIELD LOCKS, INC ,D B A COMPUTERIZED SECURITY SASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0100870084 pdf
Apr 29 1999MITCHELL, EDWARD D WINFIELD LOCKS, INC ,D B A COMPUTERIZED SECURITY SASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0100870084 pdf
May 18 1999Winfield Locks, Inc.(assignment on the face of the patent)
Dec 01 2003WINFIELD LOCKS, INC , D B A COMPUTERIZED SECURITY SYSTEMS, INC COMPUTERIZED SECURITY SYSTEMS, INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0180990443 pdf
Dec 31 2003WINFIELD LOCKS, INC COMPUTERIZED SECURITY SYSTEMS, INC MERGER SEE DOCUMENT FOR DETAILS 0171150277 pdf
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