Granted Patent
Utility
US 6,554,471 · App. 09/850,340
Thermotherapy apparatus with retractable reclining surface
Inventors:
Petra Aval, Thomas Bohnen, Michael Geier, Ralf Graute, Hans-Joachim Kannengiesser, Edeltraud Meyer, Karsten Scharnweber
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: May 7, 2001
Inventors
Petra Aval
Thomas Bohnen
Michael Geier
Ralf Graute
Hans-Joachim Kannengiesser
Edeltraud Meyer
Karsten Scharnweber
Assignee (at issue)
Dräger Medizintechnik 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.