Granted Patent
Utility
US 6,689,470 · App. 09/944,273
Thermal protection system
Inventor:
Brian E. Joseph
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Aug 31, 2001
Inventor
Brian E. Joseph
Assignee (at issue)
Touchstone Research Laboratory Ltd.
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.