Granted Patent
Utility
US 4,917,578 · App. 07/325,922
Variable capacity compressor
Inventors:
Nobuyuki Nakajima, Toshio Yamaguchi
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Mar 20, 1989
Inventors
Nobuyuki Nakajima
Toshio Yamaguchi
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.