Patent Assignment
Reel/Frame 006807/0878
Change of Name
Recorded: 1993-12-20
Pages: 8
Assignor
STEMCOR CORPORATION
Executed: 1988-04-12
Assignee
CARBORUNDUM COMPANY, THE
1625 BUFFALO AVENUE, 3, NIAGARA FALLS,, NEW YORK
Covered Properties
(2)
Dispersing Gas into Molten Metal
Patent:
4,898,367 →
Application:
07/222,934 →
Dispersing Gas into Molten Metal
Patent:
4,954,167 →
Application:
07/377,484 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jul 22, 1988
From: COOPER, PAUL V.
To: STEMCOR CORPORATION, CLEVELAND, OHIO. A CORPORATION OF DE.
Reel/Frame 004933/0801 →
Assignment of Assignor's Interest
Oct 7, 1993
From: CARBORUNDUM COMPANY
To: METAULLICS SYSTEMS CO., L.P., THE
Reel/Frame 006712/0944 →
Assignment of Assignor's Interest
Jul 19, 2005
From: METAULLICS SYSTEMS CORPORATION LP
To: PYROTEK, INC.
Reel/Frame 016536/0687 →
Security Agreement
Aug 1, 2007
From: PYROTEK INCORPORATED
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 019628/0025 →
Release of Security Interest
Sep 3, 2010
From: U.S. BANK NATIONAL ASSOCIATION
To: PYROTEK INCORPORATED
Reel/Frame 024933/0749 →
Security Agreement
Sep 3, 2010
From: PYROTEK INCORPORATED
To: WELLS FARGO, NATIONAL ASSOCIATION
Reel/Frame 024933/0783 →