Granted Patent
Utility
US 4,844,845 · App. 07/138,616
Dry mixture for production of pre-formed propellant charge
Inventors:
Stephen E. Clarke, James D. Hendry
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Dec 28, 1987
Inventors
Stephen E. Clarke
James D. Hendry
Assignee (at issue)
Ford Aerospace 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.