Granted Patent
Utility
US 6,196,128 · App. 09/294,952
Traversing contact cleaning roller cleaner
Inventors:
Frank C. Corrado, James W. Fischer, Gary R. Larsen, Ronald W. Sweet
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Apr 20, 1999
Inventors
Frank C. Corrado
James W. Fischer
Gary R. Larsen
Ronald W. Sweet
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.