Granted Patent
Utility
US 6,226,979 · App. 09/503,725
Propellant grain capable of generating buffered boundary layer for reducing rocket nozzle recession
Inventors:
Robert A. Pate, Frederick M. Perkins
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Feb 15, 2000
Inventors
Robert A. Pate
Frederick M. Perkins
Assignee (at issue)
Cordant Technologies Inc.
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.