PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D573818
|
Priority
Nov 29 2007
|
Filed
Nov 29 2007
|
Issued
Jul 29 2008
|
Expiry
Jul 29 2022
|
|
Assg.orig
|
|
Entity
unknown
|
2
|
4
|
n/a
|
|
|
The ornamental design for a chair backrest, as shown and described.
|
FIG. 1 is a perspective view of a chair backrest showing my new design;
FIG. 2 is a front view of the design;
FIG. 3 is a rear view of the design;
FIG. 4 is a left side view of the design;
FIG. 5 is a right side view of the design;
FIG. 6 is a top view of the design; and,
FIG. 7 is a bottom view of the design.
Su, Shu O
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a