Dot constrained hand printed character recognition system and method
CA 2047352 A1 · Owner: Baran, Paul · Inventors: Baran, Paul; Thompson, Archie L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, A constrained character entry form for receiving hand printed characters suitable for machine reading with the form including a web for receiving hand printed characters and printed on the web a countable number of preprinted constellations of at least three minimum sized visible dots arranged in columns and rows with each of the constellations having a height that is equivalent to the spacing between a column of three equally spaced dots to permit characters to be hand printed using substantially straight lines emanating from and terminating at two or more of said dots. The invention also includes a method for entering hand written characters into an automated character …
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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 July 18, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2013.
- 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.