Granted Patent
Utility
US 4,538,976 · App. 06/602,380
Vane compressor having suction port and discharge port located at the same axial side thereof
Inventor:
Tsunenori Shibuya
Patented Case
View Patent ↗
Granted: Sep 3, 1985
Filed: Apr 20, 1984
Inventor
Tsunenori Shibuya
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.