Granted Patent
Utility
US 5,214,008 · App. 07/870,415
High visible, low UV and low IR transmittance green glass composition
Inventors:
Steven P. Beckwith, William M. Yankovich
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Apr 17, 1992
Inventors
Steven P. Beckwith
William M. Yankovich
Assignee (at issue)
Guardian Industries Corp.
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.