System for fastening interchangeable advertisements to a supporting strip
CA 2114190 A1 · Owner: Dima S.R.L. · Inventors: Sorbini, Franco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An advertisement fastening system for a display device wherein a supporting strip is wound and unwound between two parallel rollers. Each edge of the advertisement is fitted with a, number of fastening means each comprising two, adhesive elements which are bonded respectively to the advertisement and the supporting strip and are fixed permanently to a strip of elastic material. The adhesive elements are carried on two faces of two spaced portions of the strip which also comprises a free portion for constantly tensioning the advertisement and enabling it to move in relation to the supporting strip when this is wound and unwound between the rollers.
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 January 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2016.
- 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.