Interfacing device for a computer games system
CA 2018165 C · Owner: Carron, Edward A. · Inventors: Darling, David; Darling, Richard; Carron, Edward A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interfacing device for connecting the processing unit of a computer games system to an external data storage medium has a user-operable selection unit for generating a user-selected address and user-selected data. The user-operableselection unit may comprise user-operable switches or electronic latches that are set by a program in response to selections made by the user by means of a joystick keypad or any other input device. An address comparison unit compares the user-selected address with the addresses from the processing unit and a data switching, device causes the user-selected data to be substituted for data in the storage medium whenever the compared addresses are the same. …
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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 4, 1990 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2012.
- 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.