Granted Patent
Utility
US 6,143,449 · App. 08/508,992
Non-aqueous secondary cell
Inventors:
Fusaji Kita, Masaharu Higashiguchi, Akira Kawakami
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Jul 28, 1995
Inventors
Fusaji Kita
Masaharu Higashiguchi
Akira Kawakami
Assignee (at issue)
HITACHI MAXELL, 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.