Granted Patent
Utility
US 4,850,815 · App. 07/182,481
Variable capacity vane compressor
Inventors:
Nobiyuki Nakajima, Kinichi Inomata, Shigeru Okada, Kazuo Eitai
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Apr 15, 1988
Inventors
Nobiyuki Nakajima
Kinichi Inomata
Shigeru Okada
Kazuo Eitai
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.