IP Library › Granted Patent US 551,961
Granted Patent S1
US 551,961 · App. 29/258,192 · Granted Oct 2, 2007

Rotary shaft nut of a welding mask

Assignee: Otos Tech Co., Ltd.
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Quick Facts
Patent No.
US 551,961
App. No.
29/258,192
Granted
Oct 2, 2007
Kind
S1
Claims (1)

I claim, the ornamental design for a rotary shaft nut of a welding mask, as shown and described.

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 Jul 11, 2006
From: HUH, MOON YOUNG
To: OTOS TECH CO., LTD.
Reel/Frame 017925/0971 →
Priority Claims (1)
KR 30-2005-0035061 · Oct 18, 2005 · national