Granted Patent
Utility
US 4,529,094 · App. 06/525,170
Articulation for tower crane boom that has a parking position
Inventor:
Charles Wadsworth
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Aug 22, 1983
Inventor
Charles Wadsworth
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.