Machine for injecting liquids
CA 2515538 C · Owner: Watts, Edward D. · Inventors: Hansen, Conly L.; Watts, Edward D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for injecting liquids is disclosed including use of at least one air pump (32) in fluid communication with at least one injection head (34) having apertures (48) for nozzles (42). High-pressure injectate flows from the air pump into the head, preferably through a threadlessly mounted filter (72) located within the injection head. To further minimize contamination fluid , that enters the injection head will not contact any threading present in either the head or the nozzles. An air pressure regulator is included to ensure a steady stream of injectate of a desired pressure is delivered to an injection subject via each injection head and also helping to eliminate hesitation …
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 February 6, 2004 and granted October 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2026.
- 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.