Granted Patent
Utility
US 6,562,444 · App. 09/685,637
Fiber-cement/gypsum laminate composite building material
Inventors:
James Gleeson, Mark Fisher, Donald J. Merkley
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Oct 10, 2000
Inventors
James Gleeson
Mark Fisher
Donald J. Merkley
Assignee (at issue)
James Hardie Research Pty Limited
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.