Method for modifying the surface of an object
CA 2309741 A1 · Owner: Katoot, Mohammad W. · Inventors: Katoot, Mohammad W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for modifying the surface of an object to impart desired characteristic thereto, such as lubricity, hydrophilicity hydrophobicity or , biofonctionality. The method comprises: coating the object with a first solution comprising a micrograft initiator and at least one compound selected from a hydrophilic polymer, a hydrophobic polymer a biofonctional compound or , a combination thereof; exposing the object to infrared radiation microwave , radiation or high voltage polymerization thereby producing a graft to the , surface; coating the object with a second solution containing a cellulose compound; and exposing the object to a heat source to dry and/or cure the object.
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 November 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2020.
- 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.