Patent Assignment
Reel/Frame 046957/0800
Assignment of Assignor's Interest
Recorded: 2018-09-25
Pages: 2
Assignor
CASTIGLIONE, DAVID M.
Executed: 2018-07-25
Assignee
3M INNOVATIVE PROPERTIES COMPANY
P.O. BOX 33427, ST. PAUL, MINNESOTA, 55133-3427
Covered Property
(1)
Multiple Chamber Respirator Sealing Devices And Methods