Granted Patent
Utility
US 5,842,418 · App. 08/936,713
Apparatus and method for cleaning a roller
Inventors:
Frank C. Corrado, James W. Fischer, Gary R. Larsen, Ronald W. Sweet
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Sep 24, 1997
Inventors
Frank C. Corrado
James W. Fischer
Gary R. Larsen
Ronald W. Sweet
Assignee (at issue)
Seratek, 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.