Patent Assignment
Reel/Frame 004180/0414
Security Interest
Recorded: 1983-10-11
Pages: 5
Assignor
CLEM ENVIRONMENTAL CORP., AN IL CORP
Executed: 1983-02-25
Assignee
WALTER E. HELLER & COMPANY
105 WEST ADAMS ST., CHICAGO, ILLINOIS, 60603
Covered Properties
(2)
Waterproofing Soil
Application:
06/238,701 →
Waterproofing Soil
Patent:
4,501,788 →
Application:
06/430,685 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 9, 1981
From: CLEM, ARTHUR J.
To: GEO-MAT INTERNATIONAL, INC., A CORP. OF DE.
Reel/Frame 003962/0751 →
Security Interest
Apr 9, 1982
From: GEO-MAT INTERNATIONAL, INC., A CORP. OF DE.
To: WALTER E. HELLER & COMPANY, A CORP. OF DE.
Reel/Frame 003962/0752 →
Assignment of Assignors Interest.
Sep 30, 1982
From: CLEM, ARTHUR J.
To: GEO-MAT INTERNATIONAL A CORP. OF DE
Reel/Frame 004054/0696 →
Assignment of Assignors Interest.
Dec 6, 1982
From: GEO-MAT INTERNATIONAL, INC.
To: WALTER E. HELLER & COMPANY
Reel/Frame 004065/0907 →
Assignment of Assignors Interest.
Oct 11, 1983
From: WALTER E. HELLER & COMPANY
To: CLEM ENVIRONMENTAL CORP., AN ILL CORP
Reel/Frame 004176/0077 →
Assignment of Assignors Interest.
Dec 10, 1984
From: WALTER E. HELLER & CO.
To: CLEM ENVIRONMENTAL CORP., AN IL CORP
Reel/Frame 004342/0054 →
Assignment of Assignors Interest.
Dec 10, 1984
From: GEO-MAT INTERNATIONAL
To: WALTER E. HELLER & CO., A DE CORP
Reel/Frame 004342/0052 →
Change of Name
Jun 17, 1996
From: CLEM ENVIRONMENTAL CORP.
To: CLAYMAX CORPORATION, AN ILLINOIS CORPORATION
Reel/Frame 008040/0364 →