Patent Assignment
Reel/Frame 023179/0990
Assignment of Assignor's Interest
Recorded: 2009-09-02
Pages: 3
Assignee
3M INNOVATIVE PROPERTIES COMPANY
3M CENTER, P.O. BOX 33472, ST. PAUL, MINNESOTA, 55133-3427
Covered Property
(1)
Grooved Piston
Patent:
621,038 →
Application:
29/341,359 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.