Granted Patent
Utility
US 5,010,184 · App. 07/371,669
Ionically modified agarose
Inventor:
Jurg Merz
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Jun 21, 1989
Inventor
Jurg Merz
Assignee (at issue)
Ciba-Geigy
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.