Granted Patent
Utility
US 6,059,909 · App. 09/030,361
Neutral, high visible, durable low-E glass coating system, insulating glass units made therefrom, and methods of making same
Inventors:
Klaus W. Hartig, Steve L. Larson, Philip J. Lingle
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Feb 25, 1998
Inventors
Klaus W. Hartig
Steve L. Larson
Philip J. Lingle
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.