Granted Patent
Utility
US 5,556,708 · App. 08/269,999
Process for grafting of nitrogen containing polymers and polymers obtained thereby
Inventors:
Hans-Heinrich Horl, Dietmar Nussbaumer, Eberhard Wunn
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Jul 1, 1994
Inventors
Hans-Heinrich Horl
Dietmar Nussbaumer
Eberhard Wunn
Assignee (at issue)
Sartorius AG
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.