Surface-bonded, organic acid-based mono-layers
CA 2515653 A1 · Owner: Schwartz, Jeffrey · Inventors: Hanson, Eric L.; Schwarzbauer, Jean E.; Midwood, Kim S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for providing on the surface of a substrate a chemically bonded, densely-packed oriented organic acid-based , mono-layer the method comprising: (i) providing on at least a portion of said surface of said substrate a densely-packed adsorbed oriented mono-layer , comprising a plurality of at least one organic acid species wherein each of the organic acid species comprising said adsorbed mono-layer has at least one acid functional group associated with said surface of said substrate; and (ii) bonding to the surface of said substrate said surface-associated acid functional groups.
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 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2025.
- 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.