Needle
CA 1325567 C · Owner: Deeks, David John · Inventors: Deeks, David John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A needle assembly is disclosed which comprises a hub to which a needle is fixed. A spring is coupled to the hub and surrounds the needle. The free end of the spring retains an end cap which is intended to cover the tip of the needle after use of the needle assembly. A clamp may be used to maintain the spring compressed so that the needle assembly can be used and after use the clamp is removed so that the needle biases the end cap into a position where it covers the end of the needle. Alternatively a, deformable cylinder may be coupled with the hub and have clip members which engage corresponding clip recess on the end cap to maintain the spring compressed. Upon deformation of the deformable …
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
- Granted December 28, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 2010.
- 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.