Granted Patent
Utility
US 6,367,473 · App. 09/367,003
Medium dispenser
Inventor:
Stefan Käfer
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Aug 3, 1999
Inventor
Stefan Käfer
Assignee (at issue)
Ing. Erich Pfeiffer 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.