Granted Patent
Utility
US 5,186,795 · App. 07/733,569
Two-stage process for electrolytic graining of aluminum
Inventor:
Susan Hall
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Jul 22, 1991
Inventor
Susan Hall
Assignee (at issue)
EASTMAN KODAK 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.