Granted Patent
Utility
US 6,793,380 · App. 10/373,902
Adjustable progressive joint-brake system
Inventor:
Stefan Kupfer
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Feb 25, 2003
Inventor
Stefan Kupfer
Assignees (at issue)
STERIS Corporation
ONDAL INDUSTRIETECHNIK 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.