Yarn treating jet having a flow control plate
CA 2314142 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Todd, Maurice Cornelius
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A jet for treating a yarn with a fluid has a flow control plate having a first and a second flow control opening. The flow control openings are located in the plate such that when the plate is mounted between the jet body and the manifold body, at least one, but preferably both of the flow control openings , in the plate at least partially overlap the inlet end of one (or both) of the fluid supply channels, thereby to modify the fluid flow area presented to the manifold by the fluid supply channel(s).
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 January 11, 1999 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2021.
- 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.