Toner supply insert
CA 2174872 C · Owner: Weed, John M. · Inventors: Weed, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a toner supply insert adapted to be inserted into an empty toner supply cartridge to provide a resupplied cartridge capable of dispensing toner. The toner supply insert comprises a substantially hollow container comprising a generally cylindrical wall having a longitudinal axis an insert, rear portion including a closed end an insert front, portion including an open end and a transition piece, connecting the insert front portion to the insert rear portion. A quantity of toner is provided within the toner supply insert. A seal member caps the open end and includes a tab suitable for removing the seal member. A handle and means for connecting the same to the …
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 April 24, 1996 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2018.
- 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.