Hand-held display board with changeable cards
CA 2441586 A1 · Owner: Spelman, Jim · Inventors: Spelman, Jim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hand-held inter-auto display device including a support with a handle (16) portion and an interconnecting and substantially planar display portion (18). The display portion has a first surface and a second oppositely facing surface defining therebetween a specified thickness. A plurality of individual and stackable sheets of material (26) are provided each of the sheets displaying , a selected message (28) on at least one side thereof each of the messages , being presented according to a selected content coloring and lettering style. , The sheets are pivotally bound to the planar display portion of the support so that a selected message, displayed on a first selected sheet located …
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 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2024.
- 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.