Use of a lacrophyl preparation in eye-drops containing therapeutically active compounds
CA 2407794 A1 · Owner: Molnarne Kahan, Ilona · Inventors: Molnarne Kahan, Ilona
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention refers to the use of a lacrophyl preparation containing lysozyme, tris(hydroxymethyl)aminomethane if desired other lacrophyl , components preferably ascorbic acid and/or citric acid and/or ethylenediaminetetraacetic acid, in the rest distilled water for the dissolution of an active substance being insoluble or only slightly soluble in water or physiological saline, for preparing eye-drops, and/or in case of eye-drops containing an active substance to adjust optionally an active substance medium appropriate to the composition of the native tear and for the microbiological protection of the medium.
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 May 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2023.
- 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.