Granted Patent
Utility
US 5,563,306 · App. 08/290,833
Method of purifying perfluorocarbons, and use of the perfluorocarbons thus purified
Inventor:
Hasso Meinert
Patented Case
View Patent ↗
Granted: Oct 8, 1996
Filed: Nov 3, 1994
Inventor
Hasso Meinert
Assignee (at issue)
Pharmpur GmbH
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.