Sealing compositions containing polymers of ethylenically monomers
CA 2107261 C · Owner: Dorsch, Norman · Inventors: Dorsch, Norman; Strasser, Alois; Dubois, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sealing compositions containing dispersions of polymers of ethylenically unsaturated monomers comprising (a) polymers of ethylenically unsaturated monomers (b) 0.1 to 5% by weight of branched organopolysiloxanes based on, the total weight of the sealing compositions (c) dispersing agent, (d) filler and, (e) water.
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 September 29, 1993 and granted July 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2015.
- 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.