Granted Patent
Utility
US 4,547,198 · App. 06/594,652
Method for discharging treated coal and controlling emissions from a heavy oil spray system
Inventor:
James L. Skinner
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Mar 29, 1984
Inventor
James L. Skinner
Assignee (at issue)
Atlantic Richfield 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.