Lavatory cleansing and sanitizing blocks
CA 2071017 A1 · Owner: Camp, William R. · Inventors: Orehotsky, John L.; Camp, William R.; Bunczk, Charles J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, In a solid lavatory cleansing block or tablet containing a surfactant, a germicide agent or an oxidizing agent and fillers, the improvement which comprises said cleansing block having a stabilizer selected from the group consisting of mineral oil silicone fluids and polybutene in an amount from about 0.1 to 8% by weight of the composition.
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 June 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2014.
- 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.