Sticking material and its manufacturing method
CA 2028809 A1 · Owner: Daimatsu Kagaku Kogyo Co. Ltd. · Inventors: Matsuguchi, Noboru; Matsuguchi, Tadashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sticking material comprising a base material having a suppressiveness the first heat adherent resin layer having a weak adhesion formed on a principal suface of the base material and the second heat adherent resin layer having a strong adhesion formed on a part of surface of said first heat adherent resin layer. Further, a sticking material comprising a base material a suppression layer having a suppressiveness on a principal surface of said base material the first heat adherent resin layer having a weak adhesion formed on a principal surface of the suppression layer; and the second heat adherent resin layer having a strong adhesion formed on a part of surface of said first heat adherent …
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 16, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2012.
- 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.