Granted Patent
Utility
US 4,752,012 · App. 06/901,831
Crane control means employing load sensing devices
Inventor:
Dieter C. Juergens
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Aug 29, 1986
Inventor
Dieter C. Juergens
Assignee (at issue)
Harnischfeger Corporation
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.