Patent Assignment
Reel/Frame 004176/0077
Assignment of Assignors Interest.
Recorded: 1983-10-11
Pages: 2
Assignor
WALTER E. HELLER & COMPANY
Executed: 1983-02-25
Assignee
CLEM ENVIRONMENTAL CORP., AN ILL CORP
161 WEST BURTON PLACE, CHICAGO, ILLINOIS, 60610
Covered Property
(1)
Waterproofing Soil
Application:
06/238,701 →
Related Assignments
(4)
Other recorded transfers of the patent 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.
Dec 6, 1982
From: GEO-MAT INTERNATIONAL, INC.
To: WALTER E. HELLER & COMPANY
Reel/Frame 004065/0907 →
Security Interest
Oct 11, 1983
From: CLEM ENVIRONMENTAL CORP., AN IL CORP
To: WALTER E. HELLER & COMPANY
Reel/Frame 004180/0414 →