Composition containing glutaraldehyde for removing warts
CA 1083965 A · Owner: Dermal Laboratories Limited · Inventors: Whitefield, Martin; Yarrow, Hyman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New compositions of from 1% to 25% by weight of glutaraldehyde, from 50% to 98% by weight of one or more volatile, organic solvent(s) of from 1 to 4 carbon atoms capable of forming a hydrogen bond with water or glutaraldehyde, and from 1% to 45% by weight of water in, which the percentage by weight of glutaraldehyde is at least 1/9 of, but not more than equal to the percentage, by weight of water, the percentages being based on the combined weight of glutaraldehyde, solvent(s) and water and the pH being from 3.5 to 7.0, are useful for the removal of warts.
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
- Granted August 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 1997.
- 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.