Granted Patent
Utility
US 5,840,179 · App. 08/040,515
Ultrasonic conditioning and wet scubbing of fly ash
Inventors:
Rafic Y. Minkara, Jerry L. Heavilon
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Mar 17, 1998
Inventors
Rafic Y. Minkara
Jerry L. Heavilon
Assignee (at issue)
JTM Industries, Inc.
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.