IP Library › Assignment 004478/0456
Patent Assignment
Reel/Frame 004478/0456

Assignment of Assignors Interest.

Recorded: 1985-11-01 Pages: 1
Assignor
GREAVES, BRIAN
Executed: 1985-10-28
Assignee
Covered Property (1)
Corrosion Control in Aqueous Systems Using Cationic Polymers in Combination with Phosphonohydroxyacetic Acid
Patent: 4,692,317 →
Application: 06/793,933 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Effective Date: 12/30/85 State of Incorp. Connecticut Mar 19, 1986
From: DEARBORN CHEMICAL COMPANY, A CORP. OF CONNECTICUT (MERGED INTO)
To: W. R. GRACE & CO., A CORP OF CONNECTICUT
Reel/Frame 004533/0503 →
Merger Jun 19, 1986
From: DEARBORN CHEMICAL COMPANY, A CORP. OF DE.
To: W. R. GRACE & CO.
Reel/Frame 004563/0639 →
Merger Effective Date: May 25, 1988 Connecticut Aug 5, 1988
From: W.R. GRACE & CO., A CORP. OF CONN. (MERGED INTO); GRACE MERGER CORP., A CORP. OF CONN. (CHANGED TO)
To: W.R. GRACE & CO.-CONN.
Reel/Frame 004937/0001 →