Granted Patent
Utility
US 5,244,849 · App. 07/047,428
Method for producing transparent polycrystalline body with high ultraviolet transmittance
Inventors:
Donald W. Roy, James L. Hastert, Lawrence E. Coubrough, Kenneth E. Green, Aurelio Trujillo
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: May 6, 1987
Inventors
Donald W. Roy
James L. Hastert
Lawrence E. Coubrough
Kenneth E. Green
Aurelio Trujillo
Assignee (at issue)
Coors Porcelain Company
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.