Granted Patent
Utility
US 6,267,667 · App. 09/399,389
Air duct evacuation system
Inventor:
Jody D. Fikes
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Sep 20, 1999
Inventor
Jody D. Fikes
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.