Granted Patent
Utility
US 5,671,780 · App. 08/591,164
Multilayer flexible conduit
Inventor:
Janos Kertesz
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Jan 16, 1996
Inventor
Janos Kertesz
Assignee (at issue)
Rasmussen GmbH
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.