Granted Patent
Utility
US 5,884,550 · App. 08/815,535
Integral ring carbon-carbon piston
Inventor:
G. Burton Northam
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Mar 12, 1997
Inventor
G. Burton Northam
Assignee (at issue)
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
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.