Hypodermic injection syringe provided with a plunger able to retract and contain the hypodermic needle after use
CA 2047677 A1 · Owner: Nacci, Gaetano · Inventors: Nacci, Gaetano; Nacci, Carla
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A syringe is described provided with an engagement device which at the end of the plunger travel becomes connected to the hypodermic needle and to a pneumatic actuator, preferably of vacuum type arranged to cause said needle to enter an appropriate chamber in the plunger after use.
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 January 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2013.
- 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.