Patent Assignment
Reel/Frame 003954/0667
Assignment of Assignors Interest.
Recorded: 1982-03-22
Pages: 1
Assignor
HILL, ROBERT E.
Executed: 1979-11-16
Assignee
KOPPERS COMPANY, INC., A CORP.OF DE
KOPPERS BLDG., PITTSBURGH, PENNSYLVANIA, 15219
Covered Property
(1)
Water Repellent Aqueous Wood Treating Solutions
Patent:
4,335,109 →
Application:
06/216,123 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Oct 17, 1988
From: KOP-COAT, INC.
To: PITTSBURGH NATIONAL BANK, A NATIONAL BANKING ASSOCIATION
Reel/Frame 004963/0912 →
Assignment of Assignors Interest.
Apr 13, 1989
From: KOPPERS COMPANY, INC., A DE. CORP.
To: KOP-COAT, INC., A CORP. OF DE.
Reel/Frame 005075/0929 →
Assignment of Assignors Interest.
Feb 21, 1990
From: KOP-COAT, INC. (MERGED INTO); WCG, INC. (CHANGED TO)
To: KOP-COAT, INC., A CORP. OF DE
Reel/Frame 005238/0944 →