Integrated digital platform
CA 2452138 C · Owner: Tseng, Hsin-Tung · Inventors: Tseng, Hsin-Tung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrated digital platform includes a digital display unit adapted to display visual images with a broadband device at the top side thereof two glass whiteboards arranged at left and right sides of the digital display unit an electron beam track extended along the digital display unit and the glass whiteboards at the top side an electron beam set in the electron beam track a concealable inner layer provided at an inner side of one the glass whiteboard and accommodating an audio video input/output device and a data processing/storage device and a mufti-channel speaker mounted on the integrated digital platform and the lecture environment.
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 December 5, 2003 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2025.
- 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.