Granted Patent
Utility
US 6,358,644 · App. 09/422,253
Non-aqueous electolyte cell
Inventors:
Keiichi Shibata, Kyoko Obata, Kazuhito Hatsuta
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Oct 21, 1999
Inventors
Keiichi Shibata
Kyoko Obata
Kazuhito Hatsuta
Assignee (at issue)
SONY GROUP 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.