Textile softener
CA 1182610 A · Owner: Hoechst Aktiengesellschaft · Inventors: Bucking, Hans-Walter; Billenstein, Siegfried; May, Adolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure:, Liquid textile softeners composed of an aqueous solution or dispersion of compounds of the formula I wherein R1 denotes C1-C4 alkyl, x and y each denote hydrogen or methyl, it being excluded, however for x and y, to denote simultaneously methyl n is an integer of from 1, to 10, m is the integer 1 or 2 p is an integer of from 1 to, 5, R2 denotes C8-C30 alkyl and if appropriate, other, auxiliaries.
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 February 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2002.
- 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.