Granted Patent
Utility
US 6,517,720 · App. 09/262,193
Escutcheon-mounted filter with above counter access for cartridge renewal
Inventors:
Jeffrey K. Aldred, Brian Hunter, Hermann Schneider, Hans Nikolayczik, Robert Magyar
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Mar 4, 1999
Inventors
Jeffrey K. Aldred
Brian Hunter
Hermann Schneider
Hans Nikolayczik
Robert Magyar
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.