Granted Patent
Utility
US 6,179,086 · App. 09/246,652
Noise attenuating sandwich composite panel
Inventors:
Horst Bansemir, Walter Gembler, Ottmar Haider, Christian Ritzer
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Feb 8, 1999
Inventors
Horst Bansemir
Walter Gembler
Ottmar Haider
Christian Ritzer
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.