IP Library › Granted Patent US 527,849
Granted Patent S1
US 527,849 · App. 29/223,099 · Granted Sep 5, 2006

Welding mask

Assignee: Otos Tech Co., Ltd.
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Quick Facts
Patent No.
US 527,849
App. No.
29/223,099
Granted
Sep 5, 2006
Kind
S1
Claims (1)

The ornamental design for a welding mask, as shown.

Assignments (2)
CHANGE OF ASSIGNEE'S ADDRESS Recorded Oct 24, 2008
From: OTOS TECH CO., LTD.
To: OTOS TECH CO., LTD.
Reel/Frame 021731/0228 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 9, 2005
From: HUH, MOON YOUNG
To: OTOS TECH CO., LTD.
Reel/Frame 016280/0353 →