Granted Patent
Utility
US 5,900,085 · App. 09/102,937
Method of manufacturing a geosynthetic clay liner
Inventors:
Mark Clarey, Donald Mathews
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jun 23, 1998
Inventors
Mark Clarey
Donald Mathews
Assignee (at issue)
Claymax Corporation
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.