Granted Patent
Utility
US 6,523,708 · App. 09/923,503
Mobile crane with a releasable coupling connecting the substructure to the superstructure
Inventor:
Alfons Weckbecker
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Aug 7, 2001
Inventor
Alfons Weckbecker
Assignee (at issue)
Demag Mobile Cranes GmbH & Co., KG
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.