Pressure roll cleaner
CA 2125589 C · Owner: Fletcher, Harold W. · Inventors: Agarwal, Vinod K.; Fletcher, Harold W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for cleaning a rotatable cylindrical member such as a pressure rollof a fuser assembly includes an absorbent sheet having longitudinal sides joinedat a seam and having a generally folded edge along a central longitudinal axis of the absorbent sheet. Rods disposed within the absorbent sheet support the absorbent sheet against the rotatable cylindrical member to clean the circumferential surface of the member as it rotates.
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 June 10, 1994 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2016.
- 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.