Granted Patent
Utility
US 4,869,442 · App. 07/239,805
Self-deploying airfoil
Inventor:
Ira Miller
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Sep 2, 1988
Inventor
Ira Miller
Assignee (at issue)
AEROJET-GENERAL 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.