Granted Patent
Utility
US 6,441,235 · App. 09/855,124
Preparation of 5-amino-isophthalamides
Inventors:
Edward D. Parady, Karl O. Gelotte
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: May 14, 2001
Inventors
Edward D. Parady
Karl O. Gelotte
Assignee (at issue)
Amersham Health AS
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.