Reconditioning of electrostatographic cartridges
CA 2265750 A1 · Owner: Furrow, Edward D. · Inventors: Kavolius, Vytas A.; White, Joseph E.; Furrow, Edward D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electrostatic cartridges (10) having a gear housing assembly which blocks access to a toner fill hole (22) and which includes an interior gear housing component (18a) integral with a cartridge base (14) are remanufactured by severing the interior gear housing component (18a) and then reattaching it to the cartridge base (14) through the exterior gear housing component (18b). The one-piece interior gear housing assembly (18a) is severed preferably at a 5 degree angle relative to the cartridge base (14) providing unobstructed access to the original toner fill hole (22), thereby ensuring that the attachment bosses (30) on the cartridge base (14) are not damaged to an extent that would …
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 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2019.
- 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.