Patent Assignment
Reel/Frame 010773/0683
Assignment of Assignor's Interest
Recorded: 2000-04-28
Pages: 2
Assignor
HARTMAN, RICHARD J.
Executed: 2000-04-27
Assignee
MINE SAFETY APPLIANCES COMPANY
LEGAL DEPT., P.O. BOX 426, PITTSBURGH, PENNSYLVANIA, 15230
Covered Property
(1)
Dust cassette assembly
Patent:
441,440 →
Application:
29/122,513 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.