Granted Patent
Utility
US 6,290,823 · App. 09/553,784
Convertible electrode roller for corona treating systems
Inventors:
Bruce E. Hyllberg, Gary S. Butters
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Apr 21, 2000
Inventors
Bruce E. Hyllberg
Gary S. Butters
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.