IP Library › Granted Patent US 5,556,234
Granted Patent Utility
US 5,556,234 · App. 08/433,865

Mine roof bolt assembly

Inventors: John G. Oldsen, John C. Stankus
Patented Case View Patent ↗
Granted: Sep 17, 1996 Filed: May 2, 1995
Inventors
John G. Oldsen
John C. Stankus
Assignee (at issue)
Jennmar Corporation

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Quick Facts
Patent No.
US 5,556,234
App. No.
08/433,865
Filed
1995-05-02
Granted
1996-09-17
Kind
A