Blood collection device
CA 2422307 A1 · Owner: Swenson, Kirk D. · Inventors: Hwang, Charles G.; Bressler, Peter; Wilkinson, Bradley M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety needle assembly has a needle hub and a needle cannula projecting from the hub. Wings project transversely from the hub to facilitate manipulation and, positioning of the needle assembly. A shield is hingedly attached to the needle hub and, can be rotated from a first position where the needle cannula is exposed to a second, position where the needle cannula is shielded. At least one latch may be disposed on, the shield for secure locked engagement with the hub the wings and/or the , tubing, extending from the hub. A spring may also be provided for propelling the shield into, the second position.
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 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 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.