Granted Patent
Utility
US 5,853,897 · App. 08/471,450
Substrate coated with highly diffusive metal surface layer
Inventor:
Darell E. Engelhaupt
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Jun 6, 1995
Inventor
Darell E. Engelhaupt
Assignee (at issue)
LOCKHEED MARTIN CORPORATION
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.