Preloadable syringe for automated dispensing device
CA 2307207 A1 · Owner: Bristol-Myers Squibb Company · Inventors: Linnebjerg, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The hollow cylindrical syringe body (10) has a channel (12) of uniform diameter. A fluid port (14) is situated at one end. The other end defines a funnel-like opening (20) with a diameter greater than that of the channel (12). A piston (24) is moved along the channel (12) by the end of a push rod (26) which is received through the channel opening (20). A ball (30) on the push rod (26) lodges in a socket (36) in the piston (24) as the rod pushes the piston (24) toward the port (14). The socket (36) is formed of resilient fingers (32, 34) which are held by the channel wall in position to retain the ball (30) in the socket (36), such that the piston (24) can be moved along the channel …
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 October 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2020.
- 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.