Granted Patent
Utility
US 5,290,323 · App. 07/915,699
Manufacturing method for solid-electrolyte fuel cell
Inventors:
Ryoichi Okuyama, Eiichi Nomura
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Jul 29, 1992
Inventors
Ryoichi Okuyama
Eiichi Nomura
Assignee (at issue)
Yuasa 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.