Hypodermic needle assembly
CA 2179089 C · Owner: Mahurkar, Sakharam D. · Inventors: Mahurkar, Sakharam D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A needle-syringe assembly is comprised of an elongated generally cylindrical, barrel forming a hollow nozzle located at the distal end of the barrel and opening into the interior of said barrel. A plunger is slidably mounted in the barrel and forms a longitudinal cavity. A needle holder carries a hollow needle on the distal end thereof the needle holder, being slidably mounted in said longitudinal cavity of the plunger. The needle holder includes a lateral arm extending laterally through the plunger cavity to the barrel. Guide means form a guide surface extending along a proximal end portion of the barrel for engaging the lateral arm of the needle holder and retracting the needle holder …
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 13, 1996 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2018.
- 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.