Tape cassette with features for preventing the tape from moving up or downwardly relative to the cassette
CA 1064453 A · Owner: Sony Corporation · Inventors: Machida, Tetsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel tape cassette which has tape guides that prevent the tape from moving upwardly or downwardly in the cassette and which are constructed by providing interleafed guides which are formed by molding from opposite sides of the top and lower half of the cassette during construction. It has been discovered that the tape guides molded in plastic cassettes tend to incline or tilt away from the front edge of the cassette which result in the tape moving upward or downwardly as it engages such inclined tape guides. The present invention provides for forming a portion of the guides from the upper half of the cassette and other portions of the guides formed from the lower cassette half such that …
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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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 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.