Granted Patent
Utility
US 6,567,220 · App. 09/896,749
Aviation crew mask with retinal scan instrument display for smoke in cockpit emergencies
Inventors:
Thomas K. McDonald, Gary R. Hannah
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jul 2, 2001
Inventors
Thomas K. McDonald
Gary R. Hannah
Assignee (at issue)
BE Intellectual Property, 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.