Granted Patent
Utility
US 5,356,277 · App. 08/017,324
Vane type gas compressor
Inventors:
Masaru Yamaguchi, Makoto Ijiri, Shuji Yamane, Yutaka Shimizu
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Feb 11, 1993
Inventors
Masaru Yamaguchi
Makoto Ijiri
Shuji Yamane
Yutaka Shimizu
Assignees (at issue)
Seiko Seiki Kabushiki Kaisha
Calsonic 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.