Improvements relating to lavatory cleaning blocks
CA 2248093 C · Owner: Tummiolo, Roberto · Inventors: Bartoletti, Marcella Margherita Leda; Morris, Ronald Meredith; Tummiolo, Roberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved foam behaviour and a reduction in stickiness during manufacture is shown in lavatory blocks which comprise 2-15 wt.% of oily liquid perfume, 2-30 wt.% of halogen bleaching agent 3-15 wt.% of , primary alkyl sulphate, and 15-50 wt.% of alkyl benzene, sulphonate.
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 May 12, 1997 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2019.
- 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.