Granted Patent
Utility
US 6,565,667 · App. 09/896,991
Process for cleaning ceramic articles
Inventors:
Andrew G. Haerle, Gerald S. Meder
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jul 2, 2001
Inventors
Andrew G. Haerle
Gerald S. Meder
Assignee (at issue)
SAINT-GOBAIN CERAMICS & PLASTICS, 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.