Granted Patent
Utility
US 6,429,439 · App. 09/891,919
Organic field ionization source
Inventor:
Eugene P. Marsh
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jun 26, 2001
Inventor
Eugene P. Marsh
Assignee (at issue)
Micron Technology, Inc.
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.