Granted Patent
Utility
US 4,874,485 · App. 07/205,848
Method for the treatment of waste matter
Inventor:
David Steele
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Jun 13, 1988
Inventor
David Steele
Assignee (at issue)
United Kingdom Atomic Energy Authority
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.