Dual seal closure-adaptor
CA 2078653 C · Owner: Minnette, Jeffrey C. · Inventors: Minnette, Jeffrey C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adaptor and a closure are formed with precision surfaces as by injection molding so that the closure can be attached to the adaptor without the use of excessive force to create a secondary seal. The adaptor-closure can then be attached to an imprecisely formed threaded container such as an extrusion-blow molded bottle to create a primary seal. The adaptor is permanently retained on the container with securing by thread wedging, cooperating ratchet teeth or the like.
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 September 18, 1992 and granted November 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2014.
- 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.