A cassette having a recording medium for use with a recording/reproducing apparatus
CA 2118680 C · Owner: Fujii, Hiroshi · Inventors: Fujii, Hiroshi; Sawada, Takashi; Ota, Shuichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cassette having a recording medium contained therein for use with a recording/reproducing apparatus. The cassette includes a storage device for storing information pertaining to the recording medium and/or the cassette; a plurality of terminals coupled to the storage device and adapted to be coupled to the recording/reproducing apparatus when the cassette is being used therewith so as to transfer the stored information to the recording/reproducing apparatus; and an accidental-erasure prevention switch member located in close proximity to the terminals for inhibiting recording of an information signal onto the recording medium and inhibiting erasing of a previously recorded information …
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 March 9, 1994 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2016.
- 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.