Patent
   D757586
Priority
Dec 19 2014
Filed
Dec 19 2014
Issued
May 31 2016
Expiry
May 31 2030
Assg.orig
Entity
unknown
27
3
n/a
The ornamental design for a door and window contact device for a security system, as shown and described.

FIG. 1 is a perspective view of a door and window contact device for a security system in accordance with the design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Li, chen

Patent Priority Assignee Title
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Patent Priority Assignee Title
D680014, Mar 21 2012 Robert Bosch GmbH Door/window wireless transmitter
D680459, Mar 21 2012 Robert Bosch GmbH Door/window contact
D680460, Mar 21 2012 Robert Bosch GmbH Door/window magnet holder
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Dec 18 2014Li, ChenChuango Security Technology CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0345560068 pdf
Dec 19 2014Chuango Security Technology Corporation(assignment on the face of the patent)
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