Granted Patent
Utility
US 4,444,287 · App. 06/211,410
Steering system for mobile crane
Inventor:
Richard F. Voelz
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Nov 28, 1980
Inventor
Richard F. Voelz
Assignee (at issue)
Renner Manufacturing 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.