Cleaning apparatus for a fusing member
CA 2313769 C · Owner: Xerox Corporation · Inventors: Berkes, John S.; Fletcher, Gerald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cleaning station for a fusing member has first and second cleaner rollers. The first cleaner roller is coated with a sticky or adhesive first toner layer. The first toner layer contacts the fuser member for cleaning. The second cleaner roller is coated with a sticky or adhesive second toner layer. The second toner layer is in contact with the first toner layer. The second cleaner roller defines apertures connecting a to an internal reservoir. Excess toner from the second toner layer collects in the internal reservoir.
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 July 12, 2000 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 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.