Granted Patent
Utility
US 5,385,170 · App. 08/100,999
Multiway valve
Inventors:
Wilhelm Tonhauser, Gunter Kellermann, Frank Thoma
Patented Case
View Patent ↗
Granted: Jan 31, 1995
Filed: Aug 3, 1993
Inventors
Wilhelm Tonhauser
Gunter Kellermann
Frank Thoma
Assignee (at issue)
MERCEDES-BENZ GROUP AG
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.