Granted Patent
Utility
US 6,573,207 · App. 09/824,561
Grey glass composition including erbium
Inventors:
Ksenia A. Landa, Leonid Landa, Scott V. Thomsen, Anthony V. Longobardo
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Apr 3, 2001
Inventors
Ksenia A. Landa
Leonid Landa
Scott V. Thomsen
Anthony V. Longobardo
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.