Granted Patent
Utility
US 6,447,891 · App. 09/698,126
Low-E coating system including protective DLC
Inventors:
Vijayen S. Veerasamy, Rudolph Hugo Petrmichl, Scott V. Thomsen
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Oct 30, 2000
Inventors
Vijayen S. Veerasamy
Rudolph Hugo Petrmichl
Scott V. Thomsen
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.