Bandages
CA 2175802 A1 · Owner: Penrose, Jane Edith · Inventors: Penrose, Jane Edith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are described ban-, dages which comprise a cohesive coated open cellular poly-, meric foam material which has a cellular surface area of at least, 15 % of the total surface area of the bandage when it is non-, compressed. The use of bandages and their methods of preparation, are also described.
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 November 4, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 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.