Granted Patent
Utility
US 6,579,413 · App. 10/103,239
Wet-formed mat applications for cement backerboards
Inventor:
Dale Grove
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Mar 21, 2002
Inventor
Dale Grove
Assignee (at issue)
Owens-Corning Fiberglas Technology, 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.