Granted Patent
Utility
US 4,839,090 · App. 06/519,886
Extrusion of macrocrystal scientillation phosphors
Inventors:
King H. Rosette, Herbert Packer
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Aug 3, 1983
Inventors
King H. Rosette
Herbert Packer
Assignee (at issue)
Harshaw/Filtrol Partnership
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.