Granted Patent
Utility
US 6,822,844 · App. 10/323,878
Device for electrostatic charging of a multilayer paper web
Inventor:
Werner Blim
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Dec 20, 2002
Inventor
Werner Blim
Assignee (at issue)
KOENIG & BAUER 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.