Granted Patent
Utility
US 6,237,169 · App. 09/421,195
Foldable trampoline
Inventor:
Lai Fen Ying
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Oct 18, 1999
Inventor
Lai Fen Ying
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.