Granted Patent
Utility
US 6,068,720 · App. 09/109,026
Method of manufacturing insulating glass units
Inventor:
Michael Patrick McHugh
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Jul 1, 1998
Inventor
Michael Patrick McHugh
Assignee (at issue)
Edge Seal Technologies, Inc.
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.