Granted Patent
Utility
US 6,224,613 · App. 09/562,948
Device for referencing a system of coordinates
Inventor:
Robert Hofstetter
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: May 3, 2000
Inventor
Robert Hofstetter
Assignee (at issue)
Synthes USA, LLC
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.