Granted Patent
Utility
US 6,450,482 · App. 09/928,870
Lifting device
Inventor:
Detlef Struck
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Aug 13, 2001
Inventor
Detlef Struck
Assignee (at issue)
YALE INDUSTRIAL PRODUCTS GMBH
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.