Granted Patent
Utility
US 5,979,009 · App. 08/907,847
Roller having slip-on cage for paint roller cover
Inventors:
Bruce C. Polzin, Robert A. Shaffer, David L. Prins, Rand J. Krikorian, William W. Barton, Anthony W. Gilbert
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Aug 8, 1997
Inventors
Bruce C. Polzin
Robert A. Shaffer
David L. Prins
Rand J. Krikorian
William W. Barton
Anthony W. Gilbert
Assignee (at issue)
Newell Operating Co.
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.