Peel pack paper
CA 2271389 A1 · Owner: Kapik, Rene Howard · Inventors: Scott, Michael Joseph; Weber, Robert Emil; Cohen, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a peel pack paper having a Gurley porosity of greater than 20 seconds/sheet. The paper includes a) from about 45 to about 65 % by weight, of substantially fully bleached eucalyptus Kraft pulp fibers; b) from about 10 to about 45 %, by weight, of a blend of substantially fully bleached softwood Kraft pulp fibers and substantially fully bleached hardwood Kraft pulp fibers wherein the softwood Kraft pulp fibers comprise at least 90 % by weight, of , the blend; and c) from about 10 to about 30 % by weight, of reinforcing , fibers. Importantly substantially all of the fibers of the paper are coated with a dielectric material with the coating having an average thickness of less …
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 December 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2019.
- 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.