Granted Patent
Utility
US 4,259,977 · App. 06/030,426
Transportation and placement of water-in-oil emulsion explosives and blasting agents
Inventor:
James W. Brockington
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Apr 16, 1979
Inventor
James W. Brockington
Assignee (at issue)
Atlas Powder Company
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.