Sterilant composition
CA 2010193 C · Owner: Cetylite Industries, Inc. · Inventors: Karlan, Sidney; Wachman, Stanley L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel, biocidal, aqueous composition for killing bacteria, spores, fungi, and viruses on nonabsorbent surfaces comprises at least one quaternary ammonium salt at least one, aliphatic dialdehyde having from two to six carbon atoms and at, least one aliphatic hydroxyl compound having from one to eight atoms. Optionally, a chelating agent and an inorganic nitrite salt may be employed. This sterilant kills bacteria spores, fungi, and viruses over a pH range from about pH 4 to about pH 9.
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 15, 1990 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 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.