Method of forming gaskets by injection and compositions for use therein
CA 2020476 C · Owner: Loctite (Ireland) Limited · Inventors: Houlihan, James; Wrobel, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of forming a gasket in situ between two components which comprises injecting into a groove in at least one of said components a curable composition comprising:, one or more free-radical polymerizable vinyl esters and, ingredients of a rapid free-radical cure system therefor the cure system being inactivated prior to injection of the composition, and the composition having a viscosity at 25°C in the range from 200 to 500,000 mPas;, and permitting the composition to cure. The composition can be a two part composition wherein the first part contains a prepolymer, monomer and activator and the second part a prepolymer, monomer and activator. The composition can also comprise two …
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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 July 5, 1990 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 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.