Granted Patent
Utility
US 4,478,656 · App. 05/413,401
Urethane compounds and CMDB propellants stabilized therewith
Inventor:
James D. Gibson
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Nov 14, 1973
Inventor
James D. Gibson
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.