IP Library › Granted Patent US 536,443
Granted Patent S1
US 536,443 · App. 29/225,388 · Granted Feb 6, 2007

Check valve for oxygen service

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Quick Facts
Patent No.
US 536,443
App. No.
29/225,388
Granted
Feb 6, 2007
Kind
S1
Claims (1)

The ornamental design for a check valve for oxygen service, as shown and described.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Jun 17, 2021
From: TWIN BROOK CAPITAL PARTNERS, LLC
To: US VALVE CORPORATION (F/K/A EAGLETREE-VALVE ACQUISITION CORP.
Reel/Frame 056578/0815 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2018
From: LATSOS, THOMAS
To: EAGLETREE-VALVE ACQUISITION CORP.
Reel/Frame 044948/0438 →
SECURITY INTEREST Recorded Feb 5, 2018
From: EAGLETREE-VALVE ACQUISITION CORP.
To: TWIN BROOK CAPITAL PARTNERS, LLC, AS AGENT
Reel/Frame 044831/0722 →