Patent Assignment
Reel/Frame 004916/0930
Assignment of Assignors Interest.
Recorded: 1988-08-08
Pages: 3
Assignor
CALANDRA, FRANK JR.
Executed: 1988-08-02
Covered Property
(1)
Mine Roof Support Utilizing Roof Anchors Having Eye-Bolt Heads
Patent:
4,934,873 →
Application:
07/229,705 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.