Cover for a tack memo pad
CA 2033661 A1 · Owner: Osaka Sealing Printing Co. Ltd. · Inventors: Matsuguchi, Tomikichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cover for a tack memo pad made up of a plurality of stuck-together sheet materials having formed thereon each one layer of re-adherent adhesive. It comprises constituent sheet material, a release layer formed on one principal surface of the aforementioned constituent sheet material by application of an adhesive, an adhesive layer formed by application of an adhesive over a portion with a layer of release agent already formed thereon, a seal substrate formed on the surface of the adhesive layer and a printed layer formed on the surface of the adhesive layer by printing, and within an area where the release layer is formed, partly releasable pieces of seal can be provided. With this type of …
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 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2013.
- 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.