Tape cassette
CA 1314034 C · Owner: Sato, Shinya · Inventors: Sato, Shinya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tape cassette having a projector insertion recess provided in the bottom of the cassette adjacent the cassette front between supply and take-up reels enclosed within the cassette light, receiving window apertures provided in both side walls of the cassette to allow the light from a light emitting element inserted in the projector insertion recess to be passed laterally therethrough, and an lid pivotably mounted on the front side of the cassette via arms pivoted on the side walls so that in a, stored condition, the light receiving window holes are closed by arms of the lid, characterized in that baffles are provided in both the side walls of the cassette to impede air flow from outside the …
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 March 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 2, 2010.
- 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.