Macromonomers having reactive side groups
CA 2115144 C · Owner: Marrocco, Matthew L. Iii · Inventors: Trimmer, Mark S.; Gagne, Robert R.; Hendricks, Neil H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Rigid-rod macromonomers, and methods for preparing such macromonomers having , a polyaromatic backbone, solubilizing side groups, and reactive side groups are provided. The macromonomers are chemically incorporated into polymer systems to provide stronger, stiffened polymers.
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 14, 1992 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2014.
- 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.