Chair backrest
Description
The broken line showing of screws is for the purpose of illustrating portions of the chair backrest and forms no part of the claimed design.
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D790895
Type: Grant
Filed: May 1, 2016
Date of Patent: Jul 4, 2017
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Mimosa De
Application Number: 29/563,000
Type: Grant
Filed: May 1, 2016
Date of Patent: Jul 4, 2017
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Mimosa De
Application Number: 29/563,000
Classifications
Current U.S. Class:
D6/716.4