Process for making an adhesive dressing
CA 2116650 A1 · Owner: Sperinck, Peter George · Inventors: Sperinck, Peter George; Charlton, Douglas John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for making an adhesive dressing comprises continuously feeding a strip having at least portions which are absorbent through an adhesive application zone. An adhesive is applied to one side of the strip in such a fashion that the adhesive coated strip has at least one absorbent pad area. The adhesive coated strip is fed directly and continuously to a release paper application zone in which release paper is applied over the adhesive adjacent the absorbent pad area to form a continuous, adhesive dressing.
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 February 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2016.
- 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.