Granted Patent
Utility
US 4,327,597 · App. 06/000,031
Torque converter
Inventor:
Jose M. P. Soto
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Jan 2, 1979
Inventor
Jose M. P. Soto
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.