Detergent tablet for personal washing
CA 1052222 A · Owner: Unilever Limited · Inventors: Prince, Leon M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The mushing of toilet tablets containing about 30% to about 70% by weight of acyl isethionates as the detergent active is reduced by addition of alkane sulphonates having from 12 to 14 carbon atoms. The presence of these alkane sulphonates improve the lather characteristics when chlorides and sulphates are present in the tablet.
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 April 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 1996.
- 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.