Granted Patent
Utility
US 6,673,391 · App. 10/216,325
Ceramic applicator device and method of use
Inventors:
Bruce A. Perkett, James A. Schade, Clinton Zediak, Jeffrey W. Bowling
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Aug 9, 2002
Inventors
Bruce A. Perkett
James A. Schade
Clinton Zediak
Jeffrey W. Bowling
Assignee (at issue)
ALCOA INC.
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.