Granted Patent
Utility
US 6,303,204 · App. 09/749,117
Earthen liner with clay seam cover
Inventor:
Michael Mathieson
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Dec 27, 2000
Inventor
Michael Mathieson
Assignee (at issue)
GSE Lining 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.