Granted Patent
Utility
US 5,778,488 · App. 08/802,797
Baggage caster
Inventor:
Wang Mei-Li Tsai
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Feb 18, 1997
Inventor
Wang Mei-Li Tsai
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.