Granted Patent
Utility
US 5,779,461 · App. 08/719,418
Scroll type fluid displacement apparatus having a control system of line contacts between spiral elements
Inventors:
Jiro Iizuka, Kiyoshi Miyazawa
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Sep 24, 1996
Inventors
Jiro Iizuka
Kiyoshi Miyazawa
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.