Granted Patent
Utility
US 4,949,412 · App. 07/297,626
Closed loop feedback air supply for air support beds
Inventor:
Barry L. Goode
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Oct 13, 1989
Inventor
Barry L. Goode
Assignee (at issue)
Air Plus, 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.