Granted Patent
Utility
US 4,374,328 · App. 06/257,825
Photoluminescent indicator
Inventors:
Vincent J. Tekippe, Lawrence E. Lach
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Apr 27, 1981
Inventors
Vincent J. Tekippe
Lawrence E. Lach
Assignee (at issue)
Gould 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.