Method and apparatus for conveying audiovisual information
CA 2321774 C · Owner: Parrella, Michael J. · Inventors: Lebovics, Irene; Parrella, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a method and apparatus for conveying audiovisual information. The invention utilizes a speaker (7) as a visual medium. A sheet of material (6) is secured to the radiating face of a speaker (7). A visual image is then displayed on the sheet (6) of material. Different techniques can be utilized to display the visual image onto the sheet of material (6). For example, a video image (9) can be projected onto the sheet of material (6) or the sheet of material can contain a fixed image. While the visual image is being displayed on the radiating face of the speaker (7) audible information , is being broadcast over the speaker (7).
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 March 10, 1999 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 2021.
- 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.