Patent
   D553474
Priority
May 02 2006
Filed
May 02 2006
Issued
Oct 23 2007
Expiry
Oct 23 2021
Assg.orig
Entity
unknown
2
17
n/a
The ornamental design for a chain door lock, as shown and described.

FIG. 1 is a perspective view of a chain door lock showing my new design in an unlatched condition;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a perspective view of the chain door lock of FIGS. 1–7 shown in a latched condition, the broken-line showing a fragment of a door and frame being for illustrative purposes only and forming no part of the claimed design.

Mastrogiovanni, Marco

Patent Priority Assignee Title
D594745, Apr 24 2006 JOHNSON & JOHNSON CONSUMER INC Bottle holder
D798687, Dec 26 2016 Hinge lock
Patent Priority Assignee Title
3275364,
3788107,
4105231, May 20 1976 Chain lock assembly
4136898, Nov 17 1977 Combination doorhandle and safety locking device
4363227, May 14 1980 Door lock construction
4648641, Nov 16 1984 JACKSON NATIONAL LIFE Safety device
5285666, Apr 16 1991 Combined dead lock and safety chain type door lock
5551739, Apr 05 1995 Chain lock for trailer doors or mobile home doors
210157,
217423,
226515,
229163,
229944,
233976,
D286133, May 30 1984 Venesta International Components Limited Lavatory cubicle door sliding bolt
D320338, Mar 09 1989 Door latching unit
D511958, Aug 30 2004 Chain door lock
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