Patent
   D850160
Priority
Oct 26 2017
Filed
Apr 24 2018
Issued
Jun 04 2019
Expiry
Jun 04 2034
Assg.orig
Entity
unknown
1
16
n/a
The ornamental design for a two-layer mattress spring unit, as shown and described.

FIG. 1 is a perspective view of the two-layer mattress spring unit, the shading illustrating contrasting tones between an upper layer and a lower layer of the two-layer mattress spring unit;

FIG. 2 is a right side view thereof, the left side view being a mirror image of the right side view;

FIG. 3 is a front view thereof, the rear view being identical to the front view;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

Ping, Lei

Patent Priority Assignee Title
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Patent Priority Assignee Title
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D527565, Aug 04 2004 Foamex Innovations Operating Company Mattress pad
D831382, Oct 20 2017 GUANGDONG SWEETNIGHT FURNITURE COMPANY, LTD; GUANGDONG SWEETNIGHT FURNITURE COMPANY , LTD Foam mattress
WO2016148661,
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Apr 23 2018PING, LEIBOMEI TEX LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0456180527 pdf
Apr 24 2018BOMEI TEX LTD.(assignment on the face of the patent)
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