Granted Patent
Utility
US 5,229,914 · App. 07/887,447
Cooling device that creates longitudinal vortices
Inventor:
Douglas A. Bailey
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: May 21, 1992
Inventor
Douglas A. Bailey
Assignee (at issue)
Digital Equipment Corporation
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.