Repositionable pressure-sensitive, adhesive sheet material
CA 1340261 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Fry, Arthur L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pressure-sensitive adhesive sheet material having the ability to be applied to paper and removed therefrom without lifting fibers or delaminating the paper. The otherwise conventional pressuresensitive adhesive is applied to the backing in a pattern of dots lines or other, islands of adhesive in which the size of the islands and their spacing on the backing is carefully controlled. The islands are on the order of 0.01-0.15 mm thick have at, least one other dimension no greater than about 1.5 mm and, occupy about 10-90% of the adhesive-coated area.
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
- Granted December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
- 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.