Granted Patent
Utility
US 5,503,188 · App. 08/380,210
Inflatable air bag pipeline stopper
Inventor:
Joseph Petrone
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Jan 30, 1995
Inventor
Joseph Petrone
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.