Granted Patent
Utility
US 4,586,962 · App. 06/608,690
Surface cleaning process
Inventor:
Eugene S. Barabas
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: May 10, 1984
Inventor
Eugene S. Barabas
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.