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Canadian application, no grantCanada

Material for passage through the blood-brain barrier

CA 2103399 A1 · Owner: Naito, Albert T. · Inventors: Naito, Albert T.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

of the invention, A material which has the ability to effect it's passage at least in part, and the, ability to transport other materials through the blood-brain barrier which includes any one or more pure sugars or pure amino sugars from the group consisting of meso erythritol, zylitol, D(+) galactose, D(+) lactose D(+) xylose, duicitol, myo-insoltol, L(- ) fructose, D(-) mannitol, sorbitol, D(+) glucose D(+) arabinose, D(-) arabinose, celloboise D(+) maltose, D(+) raffinose, L(+)rhammose S(+) melibiose, D(-) ribose, adonitol, D(+) arabitol L(-) arabitol, D(+) fucose, L(-) fucose D(?) lyxose, L(+) lyxose, L(?) lyxose, D(+) glucosamine D mannosamine, and D galactosamine; and any one or more …

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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 18, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 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.
FiledNovember 18, 1993
GrantedNo grant recorded
Term endedNovember 18, 2013
Patent numberCA 2103399 A1
Classification (IPC)A61K47/26 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedNov 18, 1993Term endedNov 18, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.