Granted Patent
Utility
US 5,220,783 · App. 07/762,806
Foamed in place igniter and aft-end assembly for rocket motor comprising the same
Inventors:
Charles C. Cherry, Raymond E. Wiechering
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Sep 20, 1991
Inventors
Charles C. Cherry
Raymond E. Wiechering
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.