Granted Patent
Utility
US 4,466,526 · App. 06/369,300
Helicopter engine control with rotor speed decay anticipator
Inventors:
James J. Howlett, Raymond D. Zagranski
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Apr 16, 1982
Inventors
James J. Howlett
Raymond D. Zagranski
Assignee (at issue)
Chandler Evans 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.