Granted Patent
Utility
US 6,676,744 · App. 09/969,957
Fiber cement composite materials using cellulose fibers loaded with inorganic and/or organic substances
Inventors:
Donald J. Merkley, Caidian Luo
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Oct 2, 2001
Inventors
Donald J. Merkley
Caidian Luo
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.