Granted Patent
Utility
US 4,273,147 · App. 06/030,425
Transportation and placement of water-in-oil explosive emulsions
Inventor:
Robert S. Olney
Patented Case
View Patent ↗
Granted: Jun 16, 1981
Filed: Apr 16, 1979
Inventor
Robert S. Olney
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.