Library checking systems
CA 2450622 A1 · Owner: Ds Limited · Inventors: Tilford, Howard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A library checking system for use with books provided with RFID tags comprises a terminal 1 incorporating a housing 15 within which a book is contained, during checking, and an identification antenna 17 for detecting the RFID tag of the book, while within the housing 15 and for supplying a signal identifying the book to a central, processor. A book slot 2 through which the book is insertable for checking opens into, the housing 15, and an output from the housing 15 is provided through which the book, is discharged to a pick-up area in the event of the book being passed by the central, processor as available for borrowing. A pivotable bookdrop flap 14 is provided within, the housing …
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 November 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2025.
- 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.