Granted Patent
Utility
US 5,664,739 · App. 08/608,260
Rotatable handle for disposal spool
Inventors:
Wesley F. Black, Robert J. Black, Ronald L. Black
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Feb 28, 1996
Inventors
Wesley F. Black
Robert J. Black
Ronald L. Black
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.