Granted Patent
Utility
US 5,899,677 · App. 08/823,664
Vane compressor having a high-pressure space formed in the cam ring
Inventors:
Mitsuya Ono, Jin Ohsawa, Toshihiro Murayama
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Mar 18, 1997
Inventors
Mitsuya Ono
Jin Ohsawa
Toshihiro Murayama
Assignee (at issue)
Zexel GmbH
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.