Retractable hypodermic needle assembly and method of making the same
CA 2356199 A1 · Owner: Mohammad, Owais · Inventors: Mohammad, Owais
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A retractable syringe needle featuring an adjustable length tube (40) having a first end, and a second end. The adjustable length tube (40) has a length which may be reversibly altered from a first contracted length to a second extended length. A syringe barrel (41) may be secured to the first end of the adjustable length tube (40), and a cylindrical hub having a hollow hypodermic needle attached thereto may be secured to the second end of the adjustable length tube (40). A tubular sheath (43) is disposed around the adjustable length tube (40). The tubular sheath (43) has a first end which is rigidly connected with the first end of the adjustable length tube (40) and a second , end …
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 December 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2021.
- 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.