Granted Patent
Utility
US 4,473,911 · App. 06/492,506
Bathtub rim water dam
Inventor:
Sylvia Germain
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: May 9, 1983
Inventor
Sylvia Germain
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.