Patent Assignment
Reel/Frame 004636/0850
Assignment of Assignors Interest.
Recorded: 1986-11-26
Pages: 1
Assignee
KEYSTONE INTERNATIONAL, INC., A TEXAS CORP.
P.O. BOX 40010,, HOUSTON, TEXAS, 77240
Covered Property
(1)
Butterfly Valve Construction Having a Composite Seat
Patent:
4,685,611 →
Application:
06/935,522 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.