Granted Patent
Utility
US 6,168,530 · App. 09/211,502
Device for coaxially coupling two shafts, especially for a helicopter
Inventors:
Bruno Guimbal, Elio Zoppitelli, Jean-Pierre Jalaguier
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Dec 15, 1998
Inventors
Bruno Guimbal
Elio Zoppitelli
Jean-Pierre Jalaguier
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.