Granted Patent
Utility
US 6,558,074 · App. 09/909,425
Assembly of revetments with crush-absorbing ribs
Inventor:
Jan Erik Jansson
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Jul 19, 2001
Inventor
Jan Erik Jansson
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.