Granted Patent
Utility
US 4,659,402 · App. 05/860,422
Cross-linked double base propellant having improved low temperature mechanical properties
Inventor:
Theodore F. Comfort
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Dec 14, 1977
Inventor
Theodore F. Comfort
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.