Granted Patent
Utility
US 5,871,230 · App. 08/826,612
Lap mounted inflatable bag and method of use
Inventor:
Donald J. Lewis
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Apr 4, 1997
Inventor
Donald J. Lewis
Assignee (at issue)
UNIVERSAL PROPULSION COMPANY, INC.
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.