Granted Patent
Utility
US 4,706,579 · App. 06/899,188
Method of reducing fireside deposition from the combustion of solid fuels
Inventor:
Gene A. Merrell
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Aug 21, 1986
Inventor
Gene A. Merrell
Assignee (at issue)
Betz Laboratories, 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.