Usb device protocol for a gaming machine
CA 2498290 C · Owner: Kuna, Venkata D. · Inventors: Lemay, Steven G.; Quraishi, Nadeem A.; Pickering, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disclosed gaming machine has a plurality of "gaming peripherals," each communicating with a master gaming controller via a standard peripheral interface such as the USB (Universal Serial Bus). For USB compatible communications, characteristics of a USB gaming peripheral class are defined. The USB gaming peripheral class allows features of a USB gaming peripheral in the USB gaming peripheral class to be controlled by a USB host in amanner compatible with USB.
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 August 22, 2003 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2025.
- 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.