Granted Patent
Utility
US 6,663,769 · App. 09/842,378
System for utilizing rainwater collected at buildings
Inventor:
Makoto Hosoya
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Apr 25, 2001
Inventor
Makoto Hosoya
Assignee (at issue)
Takachiho Corp.
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.