Patent Assignment
Reel/Frame 003975/0939
Assignment of Assignors Interest.
Recorded: 1982-02-04
Pages: 1
Assignor
HOLTGRAVER, EDWARD G.
Executed: 1982-01-29
Assignee
KEYSTONE INTERNATIONAL, INC.
HOUSTON, TEXAS
Covered Property
(1)
Valve Assembly
Patent:
4,399,833 →
Application:
06/345,660 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.