Flow control device
CA 2459992 C · Owner: Lo, Ying-Cheng · Inventors: Blickhan, Bryan; Lo, Ying-Cheng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Devices (30) for controlling the flow of fluid through plastic tubes such as , tubes which are part of a disposable blood donation tubing set (10) are disclosed. The device (30) comprises a clamp (31) adapted for attachment with one or more other clamps (33) to allow for easy flow control through two or more tubing segments (14a, 14b).
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 September 17, 2002 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2024.
- 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.