Water-disintegrable cleaning article in laminated sheet form
CA 2025870 A1 · Owner: Nakae, Atsuo · Inventors: Ikoma, Seiko; Ishii, Makoto; Nakae, Atsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
65702-373, Abstract of the Disclosure, Disclosed is a water-disintegrable cleaning article in an embossed laminate sheet form comprising an inner sheet sandwiched between outer sheets and impregnated with a watercontaining cleaning agent. The outer sheets are made of fibers bonded by a water-soluble or slightly water-soluble binder. The content of the water-soluble binder at a side of each of the outer sheets facing the inner sheet is higher than the other side of the outer sheet. The article has a strength sufficient to withstand cleaning work and excellent detergency and is useful for cleaning a hard surface, a hand or anal region.
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 September 20, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2012.
- 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.