Granted Patent
Utility
US 5,339,739 · App. 08/025,868
Emulsion coating apparatus
Inventor:
Charles Di Pietro
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Mar 3, 1993
Inventor
Charles Di Pietro
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.