Tape cassette
CA 1067057 A · Owner: Sony Corporation · Inventors: Serizawa, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tape cassette for a magnetic recording and/or reproducing has a housing formed with an opening through which the tape can be withdrawn from the cassette housing for the recording or reproducing of signals thereon as by one or more rotary magnetic heads and a lid is, provided to normally close the housing opening when the cassette is not in use and thereby protect the tape from damage thereto. The cassette housing is provided with guides thereon extending at right angles to each other for example, parallel to the relatively long and short sides of the cassette housing when the latter is rectangular, for the purpose of guiding the cassette into a holder therefor in either of the directions …
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
- Granted November 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 27, 1996.
- 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.