IP Library Assignment 003793/0844
Patent Assignment
Reel/Frame 003793/0844

Assignment of Assignors Interest.

Recorded: 1980-08-27 Pages: 2
Assignors
BAIN, DOUGLAS I.
Executed: 1979-02-26
CARTER, DAVID A.
Executed: 1979-03-01
DIXIT SHYAM N. S.
Executed: 1979-02-26
Assignee
CHEMED CORPORATDUBOIS A CORP. OF DEL.
DUBOIS TOWER,, CINCINNATI,, OHIO, 45202
Covered Property (1)
Air Heater Corrosion Prevention
Patent: 4,245,573 →
Application: 05/972,276 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →