Granted Patent
Utility
US 5,692,313 · App. 08/617,164
Spin extractor
Inventors:
Tomohiko Ikeda, Yoshitaka Tsunomoto, Masafumi Nishino
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Mar 18, 1996
Inventors
Tomohiko Ikeda
Yoshitaka Tsunomoto
Masafumi Nishino
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.