Granted Patent
Utility
US 5,421,370 · App. 08/168,201
Device for sealingly positioning a tube used to repair a damaged pipe
Inventors:
Alain Marcout, Marcel Teillaud, Yves Berger, Michel Berland
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Dec 17, 1993
Inventors
Alain Marcout
Marcel Teillaud
Yves Berger
Michel Berland
Assignee (at issue)
Gaz de France
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.