Granted Patent
Utility
US 4,776,778 · App. 07/158,135
Refrigerant compressor with shaft bearing having improved wear resistance
Inventors:
Masahiro Iio, Haruhiko Takada, Mitsuya Ono, Teruo Nakamura
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Feb 17, 1988
Inventors
Masahiro Iio
Haruhiko Takada
Mitsuya Ono
Teruo Nakamura
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.