Granted Patent
Utility
US 4,175,550 · App. 05/890,457
Therapeutic bed
Inventors:
James R. Leininger, John H. Vrzalik
Patented Case
View Patent ↗
Granted: Nov 27, 1979
Filed: Mar 27, 1978
Inventors
James R. Leininger
John H. Vrzalik
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.