Granted Patent
Utility
US 4,394,913 · App. 06/203,944
Crane having power operated outriggers and lock means therefor
Inventors:
John M. Lanning, Stephan R. Epps
Patented Case
View Patent ↗
Granted: Jul 26, 1983
Filed: Nov 7, 1980
Inventors
John M. Lanning
Stephan R. Epps
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.