Granted Patent
Utility
US 5,010,786 · App. 07/423,932
Automatic transmission control pressure regulator having speed sensitive valve arrangement
Inventors:
Takeo Hiramatsu, Tsunefumi Niiyama
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Oct 19, 1989
Inventors
Takeo Hiramatsu
Tsunefumi Niiyama
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.