Granted Patent
Utility
US 6,420,050 · App. 09/777,137
Multilayer composite structure with formulated acrylic cap
Inventors:
Timothy W. Birch, Anthony S. Scheibelhoffer
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Feb 5, 2001
Inventors
Timothy W. Birch
Anthony S. Scheibelhoffer
Assignee (at issue)
Ferro Corporation
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.