Granted Patent
Utility
US 6,439,775 · App. 09/568,508
Compressor bearings
Inventor:
Shigeru Ito
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: May 11, 2000
Inventor
Shigeru Ito
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.