Granted Patent
Utility
US 6,746,643 · App. 09/831,363
Molding method for blow molded product
Inventor:
Tadahiro Kannari
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: May 15, 2001
Inventor
Tadahiro Kannari
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.