Granted Patent
Utility
US 4,546,849 · App. 06/603,105
Machine operators compartment
Inventors:
Barry R. Kelley, Maurice K. LeBegue, Earl C. Michael
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Apr 23, 1984
Inventors
Barry R. Kelley
Maurice K. LeBegue
Earl C. Michael
Assignee (at issue)
National Mine Service Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.