Granted Patent
Utility
US 6,509,122 · App. 09/527,569
Polymer electrolyte
Inventor:
Noboru Oyama
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Mar 16, 2000
Inventor
Noboru Oyama
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.