Granted Patent
Utility
US 5,338,321 · App. 08/010,768
Gasoline-blended methanol fuel for internal combustion engines
Inventor:
Kiyohiro Tachiki
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Jan 29, 1993
Inventor
Kiyohiro Tachiki
Assignee (at issue)
Mitsubishi Oil 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.