Granted Patent
Utility
US 5,169,450 · App. 07/687,350
Corona treatment roller electrode
Inventors:
Jeffrey S. Opad, James R. Carlson
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Apr 18, 1991
Inventors
Jeffrey S. Opad
James R. Carlson
Assignee (at issue)
American Roller Company, LLC
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.