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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
11/14/1989
Application #:
07237146
Filing Dt:
08/26/1988
Inventor:
MACK W. HUNT
Title:
PREPARATION OF HIGH BASE CALCIUM SULFONATES
Assignment: 1
Reel/Frame:
004946/0894Recorded: 09/16/1988Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
08/24/1988
Assignee:
CHICAGO, ILLINOIS 60680
Correspondent:
AMOCO CORPORATION, PATS & LIC. DEPT.
MAIL CODE 1907A, 200 E. RANDOLPH DR.
P.O. BOX 87703
CHICAGO, IL 60680-0703
Assignment: 2
Reel/Frame:
006348/0179Recorded: 12/14/1992Pages: 20
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
12/07/1992
Assignee:
330 SOUTH FOURTH STREET
RICHMOND, VIRGINIA 23219
Correspondent:
MR. PHILIP M. PIPPENGER
PATENT AND TRADEMARK DIVISION
ETHYL CORPORATION
451 FLORIDA BOULEVARD
BATON ROUGE, LA 70801

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