Closure device
CA 2032387 A1 · Owner: Taylor, Julian D. · Inventors: Taylor, Julian D.; Taylor, Julian D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A closure device for a container of the kind which is childproof by having an inner threaded cap and an outer cap which operates by turning the outer cap in a closing direction while the inner and outer caps are operably engaged and which is free to rotate in the opposite direction without engagement of the inner cap; the improvement being that the outer cap has an aperture and the inner cap has a slot or other feature which can be engaged from outside by a coin or spoon handle. This makes the device easier for the old and infirm to open.
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 December 17, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 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.