Granted Patent
Utility
US 6,557,189 · App. 09/899,133
Invalid positioning device
Inventor:
Philip Von Schroeter
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Jul 6, 2001
Inventor
Philip Von Schroeter
Assignee (at issue)
Arjo Limited
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.