Granted Patent
Utility
US 4,259,613 · App. 06/001,302
Fluorescent indicator and method of making same
Inventor:
Richard DuBois
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Jan 5, 1979
Inventor
Richard DuBois
Assignee (at issue)
Wagner Electric 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.