Granted Patent
Utility
US 5,246,169 · App. 07/883,834
Shower head
Inventors:
Bruno Heimann, Hans-Joachim Rapp
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: May 15, 1992
Inventors
Bruno Heimann
Hans-Joachim Rapp
Assignee (at issue)
Friedrich Grohe 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.