Granted Patent
Utility
US 5,641,003 · App. 08/418,206
Process for the replacement of a hydraulic fluid contained in a control circuit such as an aircraft circuit
Inventors:
Bertrand Rey, Claude Saint-Amans
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Apr 7, 1995
Inventors
Bertrand Rey
Claude Saint-Amans
Assignee (at issue)
Societe Nationale Industrielle et Aerospatiale
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.