Granted Patent
Utility
US 5,529,438 · App. 08/247,939
Geosynthetic clay liner with modified edges for improved sealing
Inventors:
Richard Carriker, Mark Clarey
Patented Case
View Patent ↗
Granted: Jun 25, 1996
Filed: May 24, 1994
Inventors
Richard Carriker
Mark Clarey
Assignee (at issue)
Clem Environmental Corp.
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.