Granted Patent
Utility
US 6,469,205 · App. 09/681,007
Method for oxidation of xylene derivatives
Inventor:
Tohru Takekoshi
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Nov 14, 2000
Inventor
Tohru Takekoshi
Assignee (at issue)
General Electric Company
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.