Patent Assignment
Reel/Frame 003946/0508
Assignment of Assignors Interest.
Recorded: 1982-02-01
Pages: 1
Covered Property
(1)
Method of Drill Bit Manufacture and Product
Patent:
4,454,205 →
Application:
06/310,226 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.