Granted Patent
Utility
US 6,196,961 · App. 09/266,605
Automatic centrifugal machine employing a link arm mechanism
Inventors:
Hideki Hoshiba, Masahiro Inaniwa, Hidetaka Osawa, Hiroshi Hayasaka
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Mar 11, 1999
Inventors
Hideki Hoshiba
Masahiro Inaniwa
Hidetaka Osawa
Hiroshi Hayasaka
Assignee (at issue)
Hitachi Koki 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.