Granted Patent
Utility
US 4,411,604 · App. 06/260,826
Scroll-type fluid displacement apparatus with cup shaped casing
Inventor:
Kiyoshi Terauchi
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: May 5, 1981
Inventor
Kiyoshi Terauchi
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.