Granted Patent
Utility
US 6,550,424 · App. 10/061,323
Folding cage
Inventor:
Taishan Gao
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Feb 4, 2002
Inventor
Taishan Gao
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.