Improvements in and relating to medicament injection apparatus
CA 2473371 C · Owner: Dca Design International Limited · Inventors: Woolston, Robert; Azizi, Mayer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a medicament injection apparatus (2). It is desirable following injection of a medicament to wait a short time before withdrawing the needle unit (12) from the patient to allow injection medicament to disperse within the patient to reduce the risk of some of the injected medicament escaping through the needle wound and so not being dispersed as desired. A medicament injection apparatus (2) is disclosed wherein signal means (16, 18) actuated by a processor (6) signal the end of a predetermined period of time elapsing from the end of the injection operation wherein the predetermined period of time elapsing is dependent upon the amount of the …
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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 January 9, 2003 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 2025.
- 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.