Tool for gathering materials including particles and hairs
CA 2405666 A1 · Owner: Stelcher, William N. · Inventors: Stelcher, William N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hand-held cleaning tool comprises a flexible elongated member having at one end a polymer cleaning element and a finger grip at the other end the , polymer, being non-abrasive with inherent adhesion for small particles and hair no , aqueous, solubility, non-corrosive no particulate emission, and no separate chemical impregnation into the polymer.
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 30, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 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.