Self destruct video tape cassette
CA 1324830 C · Owner: Vinson, David A. · Inventors: Vinson, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A video tape cassette including a supply reel and a take-up reel and guide rollers for guiding the tape from said supply reel to the take-up reel. A portion of the tape is accessible to the reading head of a video player. A mutilating device, such as a cutting blade is positioned, adjacent the path of the leading portion of the tape so that the tape will be cut into strips prior to rewinding the tape on the take-up reel, whereby the video cassette is suitable for a one time only viewing. A cap is provided for locking the supply reel to the housing of the video tape cassette during shipment to prevent rotation of the supply reel. A simple dust cover is provided which may be completely …
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 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 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.