Granted Patent
Utility
US 6,177,206 · App. 09/186,557
Surface quality enhancement of aerospace skin sheet
Inventors:
David Dean Sullivan, Larry Kerschner
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Nov 5, 1998
Inventors
David Dean Sullivan
Larry Kerschner
Assignee (at issue)
ALCOA INC.
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.