Non-apertured cleaning sheets having non-random macroscopic three-dimensional character
CA 2555596 A1 · Owner: The Procter & Gamble Company · Inventors: Wong, Arthur; Fereshtehkou, Saeed
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are woven or hydroentangled non-apertured cleaning sheets having non-random recessed and raised regions. Optionally the sheets can comprise a , scrim, material or additives to improve adhesion. Also disclosed are cleaning implements, comprising a handle and the described non-apertured cleaning sheets. Methods of, using the sheets, articles of manufacture having instructions to the product benefits of, the non-apertured cleaning sheets and process of making the sheets are also disclosed.
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 December 8, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2022.
- 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.