Granted Patent
Utility
US 6,126,398 · App. 09/321,337
Two-piece rotor blade for a bearingless rotor of a helicopter
Inventors:
Karl-Heinz Bauer, Gerald Kuntze-Fechner
Patented Case
View Patent ↗
Granted: Oct 3, 2000
Filed: May 27, 1999
Inventors
Karl-Heinz Bauer
Gerald Kuntze-Fechner
Assignee (at issue)
Eurocopter Deutschland GmbH
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.