Fluorinated polyolefin membranes for aromatics/saturates separation
CA 2100643 A1 · Owner: Noone, Robert Edmund · Inventors: Noone, Robert Edmund; Ballinger, Bruce Henry; Ho, Win-Sow Winston
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention includes a method to crosslink fluorinated polyolefin membranes by thermal treatment and the use of crosslinked fluorinated polyolefin membranes and uncrosslinked polyvinylfluoride membranes for the separation of aromatics from saturates .
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 15, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 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.