Adhesive tape and method of using it
CA 2209813 A1 · Owner: Tesa Ag · Inventors: Wienberg, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Adhesive tape for flying reel change in paper finishing machines or the like, having a paper backing and a water-soluble self-adhesive composition characterized, in that the paper backing (2) is coated on one side with a water-soluble self-adhesive composition (3) while part of the reverse side of the paper backing (2) is provided with a double-sided adhesive tape (6) which in, turn has a readily splicing paper backing (7) which is provided on both sides with water-soluble self-adhesive composition (8 and 9 respectively).
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 July 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 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.