Syringe with squeeze release needle guard
CA 2311468 A1 · Owner: Robinson, Philip J. · Inventors: Robinson, Philip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A syringe (10) for drawing blood from a patient the syringe haying a, barrel (12) with a restricted free end (12a) and a needle assembly (14) releasably secured, to the restricted free end. A plunger (16) is inserted into the barrel through an opposed, end (12b), and retraction of the plunger within the barrel away from the , restricted free, end is effective to withdraw blood from the patient when a needle (14a) with a sharpened, free end of the needle assembly is appropriately inserted into the patient. The syringe 10, is also provided with an annular needle guard (18) that surrounds the barrel and is, slidable with respect thereto between a first position in which the needle , guard …
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 June 12, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 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.