Granted Patent
Utility
US 4,354,884 · App. 06/144,143
Process for preparing progressive burning propellant granules
Inventor:
Rafelix A. Williams
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Apr 28, 1980
Inventor
Rafelix A. Williams
Assignee (at issue)
HERCULES LLC
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.