Granted Patent
Utility
US 4,498,905 · App. 06/646,181
Method for deactivating and controlling the dusting tendencies of dried particulate lower rank coal
Inventor:
James L. Skinner
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Aug 31, 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.