Granted Patent
Utility
US 5,820,179 · App. 08/986,679
Refuse collection device
Inventor:
Eric Tsou
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Dec 8, 1997
Inventor
Eric Tsou
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.