Granted Patent
Utility
US 5,632,571 · App. 08/455,684
Concrete geomattress
Inventor:
Robert M. Mattox
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: May 31, 1995
Inventor
Robert M. Mattox
Assignee (at issue)
Tensar Corporation, LLC
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.