Ampulle
CA 2016892 C · Owner: Hansen, Bernd · Inventors: Hansen, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ampule for a liquid, removed from the ampule by a hypodermic syringe, has a neck. A conical member on one end of the hypodermic syringe is introduced into the neck of the ampule. The inside wall of the neck of the ampule is of a configuration which allows for the passage of air but does, not allow the passage of liquid in the area intended for the installation of the conical member. The shaped configuration between the socket member wall and the inside wall of the neck of the ampule is in the form of a circular closed line.
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 May 16, 1990 and granted November 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 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.