Code sensor attachment for pen
CA 2400779 A1 · Owner: Silverbrook Research Pty. Ltd. · Inventors: Lapstun, Paul; King, Tobin Allen; Silverbrook, Kia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sensing device for use with a surface having coded data disposed on the surface, the coded data being indicative of an identity of a region associated with the surface, said device including detection means arranged to detect the coded data and to generate region identity data indicative of the identity of the region using the coded data, and attachment means for facilitating attachment of the device to a writing implement.
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 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2022.
- 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.