Granted Patent
Utility
US 5,770,321 · App. 08/611,457
Neutral, high visible, durable low-e glass coating system and insulating glass units made therefrom
Inventors:
Klaus W. Hartig, Steve L. Larson, Philip J. Lingle
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Mar 22, 1996
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.