Granted Patent
Utility
US 6,338,169 · App. 09/690,716
Floating cover for large liquid reservoir
Inventor:
Claude J. DeGarie
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Oct 18, 2000
Inventor
Claude J. DeGarie
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.