Granted Patent
Utility
US 4,484,868 · App. 06/491,859
Vane compressor having improved cooling and lubrication of drive shaft-seal means and bearings
Inventors:
Tsunenori Shibuya, Masahiro Iio
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: May 5, 1983
Inventors
Tsunenori Shibuya
Masahiro Iio
Assignee (at issue)
Diesel Kiki Co., Ltd.
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.