Sticking material for preventing resticking
CA 1267830 C · Owner: Matsuguchi, Noboru · Inventors: Matsuguchi, Tadashi; Matsuguchi, Noboru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sticking material for preventing resticking comprises an adhesive layer, a second layer laminated on one main surface of the adhesive layer r a peeling agent layer laminated on the second layer and a first layer laminated on the peeling agent layer by coating with a resin. The relative adhesiveness of the various layers is satisfied by the equation:, a < b, wherein a represents the force required to separate the first layer from the second layer through the intermediary of the peeling agent layer, and b represents the adhesive power of the adhesive layer to a material being sealed. Since the second and first layers are adhered temporarily via the peeling agent layer in a condition whereby …
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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
- Granted April 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
- 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.