Patent Assignment
Reel/Frame 004334/0642
Assignment of Assignors Interest.
Recorded: 1984-10-25
Pages: 2
Assignor
WARCHOL, JOSEPH F.
Executed: 1984-10-10
Assignee
E.F. HOUGHTON & CO.
MADISON AND VAN BUREN AVENUES, A PA CORP., VALLEY FORGE, PENNSYLVANIA, 19482
Covered Property
(1)
Aqueous Quenchants Containing Polyoxazolines and N-Vinyl Heterocyclic Polymers and Their Use in Quenching Steel
Patent:
4,528,044 →
Application:
06/660,092 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Confirmatory Assignment
Sep 6, 2001
From: E. F. HOUGHTON & CO.
To: HOUGHTON TECHNICAL, INC.
Reel/Frame 012134/0280 →
Corrective Assignment to Correct Assignee Name Recorded on Reel 012134 Frame 0280.
Mar 6, 2002
From: E. F. HOUGHTON & CO.
To: HOUGHTON TECHNICAL CORP.
Reel/Frame 012983/0451 →
Security Interest
Mar 19, 2002
From: HOUGHTON TECHNICAL CORP.
To: JOHN HANCOCK LIFE INSURANCE COMPANY, AS COLLATERAL AGENT
Reel/Frame 012762/0416 →
Grant of Security Interest
Mar 10, 2008
From: HOUGHTON TECHNICAL CORP.
To: THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND
Reel/Frame 020617/0500 →
Release of Security Interest
Feb 7, 2011
From: THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND, AS COLLATERAL AGENT
To: HOUGHTON TECHNICAL CORP.
Reel/Frame 025751/0167 →