Granted Patent
Utility
US 4,915,982 · App. 07/184,263
Method of making thin film photoluminescent articles
Inventor:
Joseph Lindmayer
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Apr 21, 1988
Inventor
Joseph Lindmayer
Assignee (at issue)
QUANEX 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.