Granted Patent
Utility
US 6,412,229 · App. 09/791,413
Roof valley water collector
Inventor:
Richard L. Kuhns
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Feb 23, 2001
Inventor
Richard L. Kuhns
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.