Tape cassette
CA 1045607 A · Owner: Sony Corporation · Inventors: Kishi, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tape cassette is provided with a housing of generally rectangular configuration, and supply and take-up reels which is rotatably mounted in the housing and have a supply of tapes wound on hubs of the reels. The tape cassette is further provided with a pair of brake levers rotatably mounted about respective pivoting axes in the housing and being urged to the hubs by respective spring means and said, brake levers being disposed so that the latter apply brake forces onto the supply and take-up reels in the tape-winding direction upon the engagement of the brake levers of the hubs.
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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 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.