Patent Assignment
Reel/Frame 006372/0459
Change of Name Effective on 04/12/1988
Recorded: 1992-12-31
Pages: 3
Assignor
STEMCOR CORPORATION
Executed: 1990-11-08
Assignee
CARBORUNDUM COMPANY, THE
P.O. BOX 156, 345 THIRD STREET, NIAGRA FALLS, NEW YORK, 14302-0156
Covered Properties
(2)
Gas Injection Method
Patent:
4,052,199 →
Application:
05/597,806 →
Gas Injection Apparatus
Patent:
4,169,584 →
Application:
05/934,920 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Merger Effective Dec. 31, 1980 New York
Jul 1, 1981
From: BEAR CREEK MINING COMPANY; BEAR TOOTH MINING COMPANY; CARBORUNDUM COMPANY THE; CHASE BRASS & COPPER CO. INCORPORATED
To: KENNECOTT CORPORATION
Reel/Frame 003961/0672 →
Change of Name Effective Dec. 31, 1986. (See Document for Details)
Jun 25, 1987
From: KENNECOTT CORPORATION
To: KENNECOTT MINING CORPORATION
Reel/Frame 004815/0036 →
Assignment of Assignors Interest.
Jun 25, 1987
From: KENNECOTT MINING CORPORATION
To: STEMCOR CORPORATION, 200 PUBLIC SQUARE, CLEVELAND, OHIO 44114 A DE. CORP.
Reel/Frame 004815/0091 →