Sign system
CA 2243256 C · Owner: Healy, Donall B. · Inventors: Healy, Donall B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modular sign comprises a magnetic backing sheet a, chassis for supporting the backing sheet to provide a stable platform, and one or more sign inserts which may be coated on one side with a ferrous material so that the inserts can be held magnetically on the backing sheet. The magnetic backing sheet may include alignment ribs for aligning the various sign inserts on the backing sheet or it may be in the form of a frame with a single sign insert registered within the frame. The chassis can be supported in a frame which is made up of extruded frame members which can be connected in the manner of a picture frame. The frame members may be made with various slots or channels to retain various …
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 1, 1996 and granted May 7, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2018.
- 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.