Granted Patent
Utility
US 4,439,118 · App. 06/318,313
Orbiting fluid displacement apparatus with counterweight attachment
Inventor:
Takayuki Iimori
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Nov 4, 1981
Inventor
Takayuki Iimori
Assignee (at issue)
SANDEN CORPORATION
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.