Granted Patent
Utility
US 4,658,970 · App. 06/798,572
Deflection reduction module for boom hoist cylinder of mobile crane
Inventor:
Larry J. Oliphant
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Nov 15, 1985
Inventor
Larry J. Oliphant
Assignee (at issue)
KOBE STEEL, LTD.
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.