Granted Patent
Utility
US 5,308,573 · App. 07/917,106
Method of molding a fuel tank having baffle plates
Inventor:
Sadamu Hirakawa
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Aug 5, 1992
Inventor
Sadamu Hirakawa
Assignee (at issue)
Mitsui Petrochemical Industries, 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.