Granted Patent
Utility
US 5,035,949 · App. 07/280,146
High-temperature, high-emissivity, optically black boron surface
Inventors:
Donald F. Shepard, Robert J. Fenolia, Dennis C. Nagle, Michael E. Marousek
Patented Case
View Patent ↗
Granted: Jul 30, 1991
Filed: Dec 5, 1988
Inventors
Donald F. Shepard
Robert J. Fenolia
Dennis C. Nagle
Michael E. Marousek
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.