Granted Patent
Utility
US 5,794,791 · App. 08/477,658
Coal cleaning process
Inventor:
James K. Kindig
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Jun 7, 1995
Inventor
James K. Kindig
Assignee (at issue)
Genesis Research Corporation
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.