Granted Patent
Utility
US 4,717,316 · App. 07/043,450
Rotary compressor
Inventors:
Shigeru Muramatsu, Shigeru Shida, Takeo Horie, Masashi Yamada
Patented Case
View Patent ↗
Granted: Jan 5, 1988
Filed: Apr 28, 1987
Inventors
Shigeru Muramatsu
Shigeru Shida
Takeo Horie
Masashi Yamada
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.