Expired Canadian patentCanada
Improved control of solution catalyst droplet size with a perpendicular spray nozzle
CA 2281561 C · Owner: Lynn, Timothy Roger · Inventors: Lynn, Timothy Roger; Williams, Clark Curtis
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of perpendicular spray nozzles to deliver liquid catalyst to a gasphase polymerization reactor is taught. Moreover a method of reducing the , amount of gas needed to deliver catalyst is also taught.
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 18, 1998 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 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.
FiledFebruary 18, 1998
GrantedMarch 11, 2003
Term endedFebruary 18, 2018
Patent numberCA 2281561 C
Classification (IPC)C08F2/34 +2 more
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.