Patent Assignment
Reel/Frame 003815/0230
Assignment of Assignors Interest.
Recorded: 1980-09-11
Pages: 3
Assignor
PARSHALL DAVID G.
Executed: 1980-08-26
Covered Property
(1)
Filtration System with Bi-Flow Filter
Patent:
4,312,764 →
Application:
06/186,133 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.