Granted Patent
Utility
US 4,995,231 · App. 07/411,798
Performance arcjet thruster
Inventors:
Richard D. Smith, Steve Knowles, R. J. Cassady, William Smith, Mark A. Simon
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Sep 25, 1989
Inventors
Richard D. Smith
Steve Knowles
R. J. Cassady
William Smith
Mark A. Simon
Assignee (at issue)
Olin 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.