Granted Patent
Utility
US 5,730,173 · App. 08/632,870
Sanitary water valve
Inventor:
Jurgen Sponheimer
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Apr 16, 1996
Inventor
Jurgen Sponheimer
Assignee (at issue)
American Standard Inc.
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.