Granted Patent
Utility
US 5,801,237 · App. 08/860,860
Method for the purification of short nucleic acids
Inventor:
Hans J. Johansson
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Sep 15, 1997
Inventor
Hans J. Johansson
Assignee (at issue)
Pharmacia Biotech AB
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.