Patent Assignment
Reel/Frame 003793/0846
Assignment of Assignors Interest.
Recorded: 1980-08-27
Pages: 2
Assignors
DIXIT SHYAM N. S.
Executed: 1980-02-22
BAIN DOUGLAS I.
Executed: 1980-02-22
CARTER DAVID A.
Executed: 1980-02-28
Assignee
CHEMED CORPORATION, A CORP. OF DEL.
DUBOIS TOWER,, CINCINNATI,, OHIO, 45202
Covered Property
(1)
Fly Ash Collection
Patent:
4,256,703 →
Application:
06/107,400 →
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, A CORP. OF DE
To: DEARBORN CHEMICAL COMPANY, A CORP. OF DE
Reel/Frame 003963/0418 →
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 →