Granted Patent
Utility
US 5,521,514 · App. 08/368,270
Broken tine detector for agricultural machines
Inventors:
George F. Nelson, David P. Andersen
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Jan 3, 1995
Inventors
George F. Nelson
David P. Andersen
Assignee (at issue)
L'ORÉAL
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.