Ink supply system for an ink jet printer
CA 1109921 A · Owner: System Industries, Inc. · Inventors: Maxwell, Glenn D.; Mitchell, Charles S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ink supply system for an ink printer having a pressurizable, interchangeable ink cartridge, means for pressuring the ink cartridge upon insertion into the ink cartridge receptacle and means for establishing fluid communication between the interior of the ink cartridge and the ink supply line to the ink jet printer before pressurization of the ink cartridge occurs. The present ink supply system also includes an improved septum and needle method of establishing fluid communication.
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
- Granted September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
- 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.