Scrub pad with printed rigid plates and associated methods
CA 2464415 C · Owner: Kim, Young Lin · Inventors: Smith, Nicole; Kim, Young-Hwa; Ji, Hong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a scrubbing material that combines at least two discrete components. One component is a continuous flexible substrate (106 304, 706). A second component is a discontinuous abrasive layer affixed to the flexible substrate (106, 304, 706). The abrasive layer is a set of plates )108, 302, 402, 708) formed from a material different than the continuous flexible substrate (106, 304, 706). One or two flexible substrates (106 304, 706) with affixed plates (108, 302 402, 708) with an intermediate layer (702) such as sponge or terry cloth. The gaps (205 301) between plates (108, 302, 402, 708) are relatively large and are generally larger than one-third the largest …
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 October 17, 2002 and granted June 19, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2024.
- 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.