Patent
   D943326
Priority
Mar 26 2019
Filed
Sep 23 2019
Issued
Feb 15 2022
Expiry
Feb 15 2037
Assg.orig
Entity
unknown
1
8
n/a
The ornamental design for an office chair backrest, as shown and described.

FIG. 1 is a front elevation view of the office chair backrest showing my new invention;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perspective plan view thereof.

Ballendat, Martin

Patent Priority Assignee Title
D953085, Jan 06 2021 Chair back frame
Patent Priority Assignee Title
D702977, Dec 12 2012 BOSS DESIGN LIMITED Chair
D758087, Jan 29 2015 BOSS DESIGN LIMITED Armchair
D770788, Jan 29 2015 BOSS DESIGN LIMITED Armchair
D801742, Nov 07 2015 ITOKI CORPORATION Chair
D869215, Aug 19 2019 SIMONFURNITURE INTERNATIONAL INC. Office chair
D882999, May 04 2018 KNOLL, INC Chair
D895996, Mar 12 2019 Office chair
EP2153752,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 22 2019BALLENDAT, MARTINBOCK 1 GMBH & CO KGASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0506230415 pdf
Sep 23 2019BOCK 1 GmbH & Co. KG(assignment on the face of the patent)
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