Granted Patent
Utility
US 6,056,525 · App. 08/958,266
Vane compressor
Inventors:
Toshihiro Murayama, Tomoyasu Takahashi, Yoshiteru Hirao, Hidetoshi Arahata, Katsumi Sakamoto, Syoichi Fukuda, Hiroshi Kawahara, Hiroyuki Suzuki, Mitsuya Ono, Kazuo Kume, Susumu Makihira, Shunji Muta
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Oct 20, 1997
Inventors
Toshihiro Murayama
Tomoyasu Takahashi
Yoshiteru Hirao
Hidetoshi Arahata
Katsumi Sakamoto
Syoichi Fukuda
Hiroshi Kawahara
Hiroyuki Suzuki
Mitsuya Ono
Kazuo Kume
Susumu Makihira
Shunji Muta
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.