Granted Patent
Utility
US 6,787,007 · App. 10/253,265
Polymeric hydrogen diffusion barrier, high-pressure storage tank so equipped, method of fabricating a storage tank and method of preventing hydrogen diffusion
Inventor:
Paul A. Lessing
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Sep 23, 2002
Inventor
Paul A. Lessing
Assignee (at issue)
Bechtel BWXT Idaho, 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.