Upgradeable/downgradeable computer
CA 2045264 A1 · Owner: Acer Incorporated · Inventors: Chuang, Te-Chih
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract Of The Disclosure A computer system is made capable of accepting more than one type of central processor including a plurality of sockets for receiving more than one type of identification signal, a clock generator responsive to said identifying signal for generating clock signals for the identified type of processor, and means responsive to said identifying signal for disabling and enabling signal paths from the socket. GTS496/4O5 - 8 -
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 June 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2013.
- 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.