Light curing apparatus for a continuous linear product
CA 2026784 C · Owner: Efos Inc · Inventors: Hood, Randy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for light curing of an adhesive resin coating on a continuous string-like linear product is shown. It consists of an elongated chamber having a light reflective inner side wall and removable end caps. The product coated with the adhesive resin is passed through the chamber through transverse slots formed in the end caps. The ultraviolet curing light is injected into the chamber by a light guide inserted through the peripheral side wall. Nitrogen gas may be also passed through the chamber to enhance the curing process of the resin.
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 October 3, 1990 and granted April 30, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2012.
- 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.