Antiseptic solutions containing silver chelated with polypectate and edta
CA 2500461 C · Owner: Miner, Edwin Odell · Inventors: Miner, Edwin Odell; Eatough, Craig Norman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid antiseptic and cleanser having improved long-term stability includes at least the following principal ingredients: deionized water; silver ion polypectate, and ethylenediaminetetraaceticacid (EDTA). Presently preferred embodiments of the technology also include glycerine; 1,2-propanediol (a.k.a. propylene glycol); at least one surfactant from any of the families of alkylsulfates, sulfonates, alkanolamides betaines, amine oxides, sarcosinates , and sulfosuccinates; and a buffering compound sufficient to achieve a pH value within a range of 7.2 to 7.8.
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 September 25, 2003 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 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.