Granted Patent
Utility
US 4,424,079 · App. 06/364,000
Rust removal process
Inventor:
Eugene S. Barabas
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Mar 31, 1982
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.