Granted Patent
Utility
US 4,941,810 · App. 07/366,136
Sliding-vane rotary compressor
Inventors:
Masahiro Iio, Yoshio Suzuki, Hidehiko Takayama, Katsumi Sakamoto
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Jun 14, 1989
Inventors
Masahiro Iio
Yoshio Suzuki
Hidehiko Takayama
Katsumi Sakamoto
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.