Granted Patent
Utility
US 6,641,689 · App. 09/986,317
Vacuum IG window unit with peripheral seal at least partially diffused at temper
Inventor:
Steven L. Aggas
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Nov 8, 2001
Inventor
Steven L. Aggas
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.