Container
CA 2069862 A1 · Owner: Gregory, Anthony H. · Inventors: Gregory, Anthony H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container comprising a single or multi-layer outer shell characterised in that the outer shell (2) is provided with an inner-most wall or coating (3) of a material which is insoluble while the container is in use but is soluble or solulisable in a wash liquid. Residues of the materials contained in the container are completely and safely removed by dissolving the inner-most wall or coating (3) in the wash liquid.
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 October 29, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2012.
- 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.