Spray dry process for applying anticoagulant on a syringe barrel
CA 2466506 C · Owner: Barkell, Paul · Inventors: Church, Stephen; Barkell, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for coating a substrate surface such as an interior portion of a , syringe is provided. An aqueous anticoagulant solution is atomized onto the substrate surface and dried by the forced flow of warm air. Water is removed during the drying leaving a coating of anticoagulant. A concentrated aqueous anticoagulant solution is used to reduce the time required for drying. A syringe having an interior portion coated with anticoagulant is also provided.
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 November 13, 2002 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.