Granted Patent
Utility
US 4,514,157 · App. 06/613,996
Rotary vane compressor
Inventors:
Teruo Nakamura, Shoichi Fukuda
Patented Case
View Patent ↗
Granted: Apr 30, 1985
Filed: May 25, 1984
Inventors
Teruo Nakamura
Shoichi Fukuda
Assignee (at issue)
Diesel Kiki Co., Ltd.
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.