Break-away safety shield for needle cannula
CA 2129174 C · Owner: Partika, Lawrence · Inventors: Partika, Lawrence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety shield assembly is provided for safely enclosing a needle cannula. The safety shield assembly includes an inner shield that is slidably movable along the needle cannula. The inner shield includes a locking structure which locks the inner shield with respect to the distal end of the needle cannula. The safety shield assembly alsoincludes an outer shield that is in releasable engagememt with the inner shield. The outer shield will separate from the inner shield in response to excessive force exerted thereon, and hence avoids failure of the structure locking the inner shield to the needle cannula.
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 July 29, 1994 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2016.
- 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.