Granted Patent
Utility
US 4,794,813 · App. 07/066,743
Adjustable hydraulic controls for earth-moving equipment
Inventors:
Thomas R. Brown, Ronald C. Natzke, Richard H. Logan
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Jun 25, 1987
Inventors
Thomas R. Brown
Ronald C. Natzke
Richard H. Logan
Assignee (at issue)
J. I. Case 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.