Seal for a box enclosing a compact disc or tape cassette
CA 1270215 C · Owner: Holmgren, Kjell Ake Bertil · Inventors: Holmgren, Kjell Ake Bertil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a seal for a box (10 11), enclosing a compact disc, which comprises two rectangular box halves hingedly interconnected. The seal comprises a blocking element (14, 15, 16) to be applied to the box on the outside thereof, and this blocking element engages the two box halves with the box in closed position and is engaged therewith by means of a latch mechanism (18, 19) positively locking into the box halves. The latch mechanism can be operated to an unlocked position by means of a special tool for disengaging the blocking element from the box.
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 June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
- 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.