Easily breakable sticking material
CA 1265032 C · Owner: Matsuguchi, Tadashi · 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
An easily breakable sticking material is disclosed which comprises a surface layer, an easily breakable layer laminated on one main surface of the surface layer a first, peel-off layer facilitating peeling of the surface layer off the easily breakable layer, a second peel-off layer formed on a part of the main surface of the easily breakable layer a, covering layer formed on the second peel-off layer side main surface of the easily breakable layer, and an adhesive layer formed on the main surface of the covering layer. When the surface layer is peeled off, only the easily breakable layer where the second layer is formed is peeled off the covering layer. As a result, the easily breakable …
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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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 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.