Granted Patent
Utility
US 6,132,056 · App. 09/106,030
Apparatus for creating an illuminated waterfall
Inventor:
Douglas Ruthenberg
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jun 29, 1998
Inventor
Douglas Ruthenberg
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.