Granted Patent
Utility
US 6,536,556 · App. 09/977,949
Noise reduction sandwich panel, notably for aircraft turbojet engine
Inventors:
Alain Porte, Herve Batard
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Oct 17, 2001
Inventors
Alain Porte
Herve Batard
Assignee (at issue)
Airbus France
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.