Safety hypodermic syringe and needle holder for same
CA 2325613 A1 · Owner: Lo, Cheng-Chi · Inventors: Lo, Cheng-Chi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A needle holder used in a safety hypodermic syringe including a hollow cylindrical body having a rear coupling structure adapted to receive a front retaining tip of the plunger of the safety hypodermic syringe with which the needle holder is used wherein the needle holder has at least one movable unit and at least one engagement unit respectively connected to the hollow cylindrical body, the at least one movable unit being alternatively shifted between an extended-output status where the at least one movable unit is respectively disengaged from the at least one engagement unit, and an inwardly squeezed status where the at least one movable unit is respectively forced by an external force …
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 November 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2022.
- 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.