Method and apparatus for a serum free medical solution
CA 2044552 A1 · Owner: Skelnik, Debra L. · Inventors: Lindstrom, Richard L.; Skelnik, Debra L.; Lindstrom, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1), Method and Apparatus of a Serumfree Medical Solution Abstract of the Disclosure, A serumfree medical solution for applications in Ophthalmology that contains, one or more growth factors which maintains and enhances the preservation of eye tissues, including human corneal tissues at low temperatures (2°C to 15°C). This solution is composed of a an aqueous nutrient and electrolyte solution supplemented with, a glycosaminoglycan(s) a deturgescent agent(s), a buffer system(s) an energy, source(s), an antioxidant(s) membrane stabilizing components, and containing one or more growth factors.
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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 June 13, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2013.
- 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.