Disposable hypodermic syringe
CA 2034303 C · Owner: Syrinworld, S.L. · Inventors: Caralt Batlle, Jaime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disposable hypodermic syringe, comprising a tube with its front part narrowed and, adapted to receive a hypodermic needle and a hollow piston capable of sliding through the inside of the tube; obturating devices laid across and held in operative position by the head of the needle; a spring, that tends to push the needle towards the inside of the tube; a closing device of the piston's cavity; and irreversible joining devices to fit other complementary joining devices placed at the head of the needle. The afore mentioned obturating devices are composed of a discoid part made of a slightly flexible material having a central countersinked hole to receive the head of the needle that passes …
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 January 16, 1991 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2013.
- 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.