Syringe with interchangeable and retractable needle platform
CA 2049972 C · Owner: Patco Ventures, Ltd. · Inventors: Sharp, Fraser R.; Novacek, Laurel A.; Mclean, Donald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a safety syringe needle device which has medical and industrial application. More particularly this invention pertains to a syringe which after being used by a person to , inject medication or fluid into a patient or in sampling, or exposure to toxic materials or the like, can be transformed by the person to withdraw the needle into the barrel of the syringe for disposal purposes; thereby eliminating needlestick injuries among such persons. A syringe comprising (a) a hollow elongated barrel means (8, 132); (b) penetration means (2 4; 2, 6) which is adapted to , removably engage with an end (10) of the barrel means; (c) plunger means (16) adapted to fit within …
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 March 20, 1990 and granted May 30, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 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.