Granted Patent
Utility
US 6,004,416 · App. 08/901,349
Shed-formed profile insulating covering and manufacturing method thereof
Inventors:
Francesco Portas, Ubaldo Vallauri
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Jul 28, 1997
Inventors
Francesco Portas
Ubaldo Vallauri
Assignee (at issue)
Pirelli Cavi S.p.A.
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.