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CA 1108764 A · Owner: Quest Automation Limited · Inventors: Buckle, Derek; Strand, Timothy D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A handwriting recognition device comprises a transducer surface responsive to a pen positioned thereon for representing the coordinate position of the pen as an electrical signal, and data processing means for recognizing a handwriting effected with the pen, the data processing means including a microprocessor based control controlling a read/write memory, a non-volatile read-only memory storing a handwriting recognition routine to store recognized handwriting in the read/write memory, and an interface communicating to a host computer system a representation of the recognized character. A visual display may be provided coupled to a display interface and an input information for receiving …
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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
- 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.