Granted Patent
Utility
US 4,060,041 · App. 05/591,556
Low pollution incineration of solid waste
Inventor:
Norman K. Sowards
Patented Case
View Patent ↗
Granted: Nov 29, 1977
Filed: Jun 30, 1975
Inventor
Norman K. Sowards
Assignee (at issue)
Energy Products of Idaho
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.