Granted Patent
Utility
US 5,851,088 · App. 08/905,741
Modular retaining wall block system including wall blocks having replaceable dual purpose facing panels and removable spacing tabs
Inventors:
Robert E. Anderson, Gale Sanders, Robert Freund
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Aug 4, 1997
Inventors
Robert E. Anderson
Gale Sanders
Robert Freund
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.