Granted Patent
Utility
US 6,110,406 · App. 08/997,725
Method for producing molding material
Inventors:
Hirofumi Ishibashi, Kenzi Hirose
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Dec 24, 1997
Inventors
Hirofumi Ishibashi
Kenzi Hirose
Assignee (at issue)
Idemitsu Petrochemical 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.