Granted Patent
Utility
US 5,638,895 · App. 08/621,448
Twin fan cooling device
Inventor:
Douglas A. Dodson
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Mar 25, 1996
Inventor
Douglas A. Dodson
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.