Acoustic absorber for aircraft engines
CA 2583103 C · Owner: Eads Deutschland Gmbh · Inventors: Peiffer, Alexander; Maier, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acoustic absorber, which is particularly suitable for engines of aircraft has a , honeycomb-shaped 3-dimensional structure (11) which absorbs noise of the engine when , used in an engine. The structure (11) has a plurality of folded honeycomb structures (8) , formed by folding a flat semi-finished product.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 28, 2005 and granted June 30, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.