One part woodworking adhesive composition
CA 2488103 C · Owner: H.B. Fuller Licensing & Financing, Inc. · Inventors: Lehman, Nicholas C.; Anderson, John T.; Rhein, Scott W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adhesive composition that includes a) an emulsion that includes a multi~ stage polymer that includes a first stage polymer having a Tg from -20 ~C to 90 ~C and including from about 0.5 % by weight to about 3 % by weight latent crosslinking monomer based on the first stage monomer weight and a second , stage polymer having a Tg from 40 ~C to 140 ~C the second stage polymer being , different from the first stage polymer b) formaldehyde-based crosslinking , agent and c) catalyst, the composition being capable of passing the DIN EN 204 Test Method.
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 July 1, 2003 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 1, 2025.
- 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.