Granted Patent
Utility
US 6,745,817 · App. 10/115,141
Casting method and casting apparatus
Inventors:
Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Apr 4, 2002
Inventors
Keisuke Ban
Akira Sunohara
Yasuhiro Sasaki
Koichi Ogiwara
Assignee (at issue)
NISSIN KOGYO 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.