Patent Assignment
Reel/Frame 004677/0988
Assignment of Assignors Interest.
Recorded: 1987-03-12
Pages: 1
Assignor
CALVIN, DOUGLAS G.
Executed: 1987-03-09
Covered Property
(1)
Corrosion-Resistant Overlay for the Edge of Butterfly Valves
Patent:
4,773,625 →
Application:
07/025,215 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.