Granted Patent
Utility
US 4,419,926 · App. 06/183,499
ESC energy recovery system for fuel-efficient aircraft
Inventors:
Michael Cronin, Gordon Seid
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Sep 2, 1980
Inventors
Michael Cronin
Gordon Seid
Assignee (at issue)
Lockheed 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.