Granted Patent
Utility
US 6,604,766 · App. 09/967,803
Fiberglass insulation installer
Inventor:
Donald S. Hassell
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Oct 1, 2001
Inventor
Donald S. Hassell
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.