Granted Patent
Utility
US 6,610,266 · App. 10/156,890
Calcium metasilicates and methods for making
Inventors:
Michael C. Withiam, Donald Conley, Edward T. Yannul
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: May 29, 2002
Inventors
Michael C. Withiam
Donald Conley
Edward T. Yannul
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.