Granted Patent
Utility
US 4,498,462 · App. 06/318,376
Fluidized bed therapy apparatus
Inventor:
Ernest J. Henley
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Nov 5, 1981
Inventor
Ernest J. Henley
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.