Powdered anti-microbial composition
CA 2011124 C · Owner: Badertscher, Duncan C. · Inventors: Badertscher, Duncan C.; Kralovic, Raymond C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Medical instruments, which may include brass copper, aluminum, stainless steel, carbon steel or plastic parts, are microbially decontaminated (sterilized or disinfected) in an antimicrobial solution. To provide a long shelf life premeasured doses of powdered reagents are sealed in an ampule until ready for use. The powdered reagents are selected such that they react in the presence of water to form a strong oxidant solution in an appropriate concentration to be effective as an antimicrobial. The preferred powdered reagents include acetylsalicylic acid and sodium perborate which react in the presence of water to form a peracetic acid solution. Moreover these dry, reagents form sodium …
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 February 28, 1990 and granted March 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2012.
- 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.