Speaker unit for a communication system
CA 2525609 C · Owner: Cichy, Marcin C. · Inventors: Cichy, Marcin C.; Ibbetson, Terence A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A speaker unit for a communications system includes a housing having a front and a back. , The front has a plurality of spaced-apart recesses. A circuit board is fitted to the back of the , housing. There is a push to talk switch mounted on the circuit board. There is a grill having , a plurality of outwardly extending tabs. The tabs slidably engaged in the recesses of the , housing to permit the grill to move in a direction extending between the front and the back , of the housing. One of the tabs of the grill contacts the push to talk switch whereby pushing , the grill towards the back of the housing actuates the switch. There is an annular retainer , fitted over the grill to retain …
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 November 4, 2005 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 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.