Low adhesion compositions of perfluoropolyethers
CA 1339614 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Larson, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low adhesion perfluoropolyether composition is provided. The composition comprises a copolymer prepared from a mixture of at least one monofunctional perfluoropolyether monomer and at least one difunctional perfluoropolyether monomer, each of said monofunctional and difunctional monomers having a molecular weight in the range of about 1500 to 2500.
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
- Granted January 6, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 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.