Granted Patent
Utility
US 4,729,598 · App. 07/028,657
Patient chair system
Inventor:
Jack H. Hess
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Mar 20, 1987
Inventor
Jack H. Hess
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.