Patent Assignment
Reel/Frame 005725/0580
Assignment of Assignors Interest.
Recorded: 1991-06-10
Pages: 3
Assignor
OSMAN, AKHTAR
Executed: 1991-03-19
Assignee
POLYSAR RUBBER CORPORATION
A CORPORATION OF CANADA, SARNIA, PROVINCE OF ONTARIO, CANADA
Covered Property
(1)
Polyisobutylene Based Block Copolymers
Patent:
5,260,383 →
Application:
07/686,553 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.