Granted Patent
Utility
US 4,396,395 · App. 06/333,144
Method and apparatus for contacting particulate coal and a deactivating fluid
Inventors:
James L. Skinner, J. David Matthews
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Dec 21, 1981
Inventors
James L. Skinner
J. David Matthews
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.