Granted Patent
Utility
US 4,817,865 · App. 07/169,551
Ventilation system for modular electronic housing
Inventor:
Donald L. Wray
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Mar 17, 1988
Inventor
Donald L. Wray
Assignee (at issue)
Racal Data Communications, 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.