Granted Patent
Utility
US 5,486,247 · App. 08/013,434
Explosive composition, manufacture and use thereof
Inventor:
Bjorn Engsbraten
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Feb 4, 1993
Inventor
Bjorn Engsbraten
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.