Granted Patent
Utility
US 6,419,728 · App. 09/723,724
Hydrogen-permeable metal membrane and method for producing the same
Inventor:
David J. Edlund
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Nov 27, 2000
Inventor
David J. Edlund
Assignee (at issue)
Idatech, 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.