IP Library › Granted Patent US 775,344
Granted Patent S1
US 775,344 · App. 29/535,292 · Granted Dec 27, 2016

Filter cartridge for welding respirator

Inventor: Ziqian Wu (Nanjing, CN)
Assignee: Tecmen Electronics Co., Ltd.
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Quick Facts
Patent No.
US 775,344
App. No.
29/535,292
Granted
Dec 27, 2016
Kind
S1
Claims (1)

The ornamental design for a filter cartridge for welding respirator, as shown and described.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 17, 2023
From: TECMEN ELECTRONICS CO., LTD.
To: TECMEN ELECTRONICS CO., LTD
Reel/Frame 063353/0937 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 5, 2015
From: WU, ZIQIAN
To: TECMEN ELECTRONICS CO., LTD.
Reel/Frame 036283/0313 →
Priority Claims (1)
CN 2015 3 0087770 · Apr 7, 2015 · national