Granted Patent
Utility
US 5,161,567 · App. 07/786,391
Escutcheon for recessed plumbing fixture
Inventor:
Jurgen Humpert
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Nov 1, 1991
Inventor
Jurgen Humpert
Assignee (at issue)
Friedrich Grohe Armaturenfabrik GmbH & Co.
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.