Data processing apparatus including a cd-rom
CA 2059604 C · Owner: Fujitsu Limited · Inventors: Minoura, Hiroshi; Yamaguchi, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A data processing system including a CD-ROM drive addresses, data in the CD-ROM and commands the CD-ROM drive to read the data; selects one of a plurality of control means corresponding to a format of data in the CD-ROM used; by using the control means selected, controls the CD-ROM drive to read the data addressed processes the data read in accordance with the data format; and stores the data processed into a memory.
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 January 17, 1992 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2014.
- 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.