Patent Assignment
Reel/Frame 015117/0429
Assignment of Assignor's Interest
Recorded: 2004-09-13
Pages: 2
Assignor
HERSICK, F. JOSEPH
Executed: 2004-08-10
Assignee
MINE SAFETY APPLIANCES COMPANY
121 GAMMA DRIVE, PITTSBURGH, PENNSYLVANIA, 15238
Covered Property
(1)
Protective helmets and method of manufacture thereof
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.