Device for automatic reading of a plurality of codes by means of a single key code
CA 2487536 C · Owner: Ghisleri, Pier Francesco · Inventors: Ghisleri, Pier Francesco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device (10) for the automatic reading of a plurality of codes by means of a key code exceptionally suitable for maintaining a plurality of codes secret and making them available with the introduction of a key code comprises a , plurality of drums (12) adapted to rotate around an axis (14) and a plurality of inserts (34) provided with visible faces suitable for carrying distinctive elements. The inserts (34) are connected in a movable manner along the side edge of each of the said drums to form strings. The drums (12) can be place side by side in an axial direction in order to align all the distinctive elements of a plurality of drums and are inserted on a rod (38) that includes a …
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 13, 2002 and granted May 21, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2024.
- 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.