Patent Assignment
Reel/Frame 003965/0292
Assignment of Assignors Interest.
Recorded: 1982-01-14
Pages: 2
Assignee
CHEMED CORPORATION
DUBOIS, TOWER, A CORP. OF DE, CINCINNATI, OHIO, 45202
Covered Property
(1)
Composition and Method for Inhibiting Corrosion
Patent:
4,350,606 →
Application:
06/193,656 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 15, 1982
From: CHEMED CORPORATION
To: DEARBORN CHEMICAL COMPANY
Reel/Frame 003967/0075 →
Merger
Mar 19, 1986
From: DEARBORN CHEMICAL COMPANY
To: W.R. GRACE & CO.
Reel/Frame 004528/0776 →
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 →