Method of forming a thermoplastic layer on a layer of adhesive
CA 2321978 A1 · Owner: Fleming, Danny L. · Inventors: Rinehart, Ernest M.; Fleming, Danny L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of forming a thermoplastic layer on an adhesive layer is provided. In the steps of the method, a thermoplastic powder is provided having a melt flow index of at least about 0.008 grams/10 minutes the powder is applied to at , least one surface of the adhesive layer to form a particle layer and the , combination is then subjected to elevated heat and pressure until particle layer is fused into a continuous layer and the continuous layer is bonded to the adhesive layer.
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 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2020.
- 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.