Granted Patent
Utility
US 6,739,109 · App. 10/323,999
Sealing device for a disposable cup
Inventor:
Jui Chuan Fan
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Dec 20, 2002
Inventor
Jui Chuan Fan
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.