Hearing protection and/or loudspeaker element
CA 2576271 C · Owner: Pfanner Schutzbekleidung Gmbh · Inventors: Pfanner, Anton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a hearing protection and/or loudspeaker element (1) provided with a carrier part (2) arranged on a protective helmet (5) and a module (4) which can be actively connected to the outer ear of a wearer and which acts as a hearing protection and/or loudspeaker module. The carrier part (2) and protective helmet can be fixed to the head of the wearer. The module (4) which acts as a hearing protection and/or loudspeaker module can be adjusted in relation to the carrier part (2) and shifted from a position of rest to a position of use. The module (4) itself is like a plug and is embodied as a part which covers the entrance to the human outer ear.
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 August 12, 2005 and granted November 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 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.