Word listing system
CA 2049306 A1 · Owner: Kasravi, Peter B. · Inventors: Kasravi, Peter B.; Kasravi, Peter B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A word listing system adapted to be complied into an electronic or print dictionary or compendium wherein the words are arranged in columns. There is a vertical guide column which indexes words arranged horizontally in said columns by corresponding letters alphabetically arranged therein. Said words may extend horizontally on either side of said guide column, end or begin with the letter in said guide columns. Each word in said list is reproduced at least twice in said compendium.
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 January 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 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.