Tethered display device
CA 2259232 C · Owner: Electronic Programming And Design Inc. · Inventors: Shaw, Matthew H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tethered display device (11) with at least two vertical panels (18) connected at a top seam (14) and a bottom seam (15). The panels (18) are preferably cloth or other soft and flexible material. The panels (18) and seams (14, 15) define at least one tubular channel through which air can flow. In preferred embodiments, there are multiple channels in each device (11). Preferred embodiments will also have at least one soft airfoil (13) horizontally disposed between and connected to the two vertical panels (18). In the simplest airfoil embodiment, the airfoil (13) defines two tubular channels, one above the airfoil (13) and one below the airfoil (13). In each airfoil embodiment, an …
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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 April 30, 1997 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2019.
- 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.