Patent Assignment
Reel/Frame 005135/0662
Assignment of Assignors Interest.
Recorded: 1989-09-14
Pages: 1
Assignor
MACK, DAVID J.
Executed: 1989-09-08
Assignee
WESTERN COMPANY OF NORTH AMERICA, THE
P.O. BOX 186, A DE CORP., FORT WORTH, TEXAS, 76101
Covered Property
(1)
Fracturing Process Using Carbon Dioxide and Nitrogen
Patent:
5,069,283 →
Application:
07/388,672 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.