Granted Patent
Utility
US 4,830,760 · App. 07/161,786
Treatment of iron waste
Inventor:
Mark Moskowitz
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Feb 29, 1988
Inventor
Mark Moskowitz
Assignee (at issue)
GAF 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.