Character encoding
CA 2045474 C · Owner: Digital Equipment Corporation · Inventors: Gilbert, Peter D.; Fisher, Edward G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of encoding the characters of a character set, wherein the characters have a plurality of attributes (e.g. base, diacritical, and case) and, wherein each attribute may have a plurality of values. The method comprises the steps of: dividing a multi-digit code into a plurality of parts assigning each, attribute to a different part and, within each part, assigning a different numerical code to each different value of the attribute.
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 October 16, 1990 and granted November 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2012.
- 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.