Patent Assignment
Reel/Frame 003811/0612
Assignment of Assignors Interest.
Recorded: 1980-11-26
Pages: 1
Assignor
CALVERT MICHAEL A.
Executed: 1980-09-26
Assignee
T.K. VALVE LIMITED
DISTRICT OF COLUMBIA
Covered Property
(1)
Ball Valves
Patent:
4,318,420 →
Application:
06/192,922 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.