Granted Patent
Utility
US 5,765,402 · App. 08/800,807
Spin extractor
Inventors:
Tomohiko Ikeda, Yoshitaka Tsunomoto, Masafumi Nishino, Kouichi Hatsuda
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Feb 18, 1997
Inventors
Tomohiko Ikeda
Yoshitaka Tsunomoto
Masafumi Nishino
Kouichi Hatsuda
Assignee (at issue)
SANYO ELECTRIC 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.