Granted Patent
Utility
US 4,856,087 · App. 07/240,055
Radio equipped inflatable device
Inventor:
Mark S. Nesbit
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Aug 26, 1988
Inventor
Mark S. Nesbit
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.