Granted Patent
Utility
US 4,469,544 · App. 06/546,618
Etching fountain
Inventor:
Jack Goodman
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Oct 28, 1983
Inventor
Jack Goodman
Assignee (at issue)
Chevron Research Company
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.