Granted Patent
Utility
US 4,435,136 · App. 06/260,756
Orbiting piston type fluid displacement apparatus with shaft bearing and seal mechanisms
Inventors:
Kiyoshi Terauchi, Seiichi Sakamoto
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: May 5, 1981
Inventors
Kiyoshi Terauchi
Seiichi Sakamoto
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.