Granted Patent
Utility
US 6,509,469 · App. 10/148,336
Process for the production of pyridine derivatives
Inventors:
Taichi Shintou, Fumiaki Ikeuchi
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: May 29, 2002
Inventors
Taichi Shintou
Fumiaki Ikeuchi
Assignee (at issue)
SANKIO CHEMICAL 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.