Disc case
CA 2179741 C · Owner: Fresvig, Jan · Inventors: Fresvig, Jan; Knutsen, Stian Valentin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Container for compact discs and a similar objects with a pocket shaped disc cover (11) and a disc drawer (12) to be inserted in the disc cover with a disc. The disc drawer is provided with a circular recess (22) for the disc and a center member (23) to maintain the disc in position by engaging the center opening of the disc. The disc drawer is provided to be hinged along a hinge line (32) crossing the recess (22) in its front half, to bring an adjoining part (36) of the disc drawer (12) out of the disc plane. The disc drawer (12) is preferably provided with at least one slot (34, 35) along the hinge line (32) preferably one slot on each side of the center of the hinge line.
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
- Filed December 14, 1994 and granted February 22, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2016.
- 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.