Granted Patent
Utility
US 6,102,659 · App. 09/199,238
Swash-plate device for controlling the pitch of rotor blades with cylindrical runners sliding on non-rotating pillars
Inventor:
Etienne Rampal
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: Nov 24, 1998
Inventor
Etienne Rampal
Assignee (at issue)
EUROCOPTER
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.