A multilayer flexible transfer tape
CA 2253630 A1 · Owner: Titze, Lothar · Inventors: Buchholz, Martina; Titze, Lothar; Giersemehl, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a flexible, multilayered transfer tape with an auxiliary carrier and a pressure-sensitive adhesive layer. A white-pigment transfer layer containing binding agents is provided between the auxiliary carrier and the pressure-sensitive adhesive layer and has greater adherence to the pressure-sensitive adhesive layer than to the auxiliary carrier. Said transfer tape is characterised in that a non-white pigment is finely dispersed a) in a plastic-bonded intermediate layer which is a1) between the whitepigment transfer layer and the pressure-sensitive adhesive layer or a2) in the white-pigment transfer layer, and/or b) in the pressure-sensitive adhesive layer. In …
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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
- Filed March 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 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.