Bounded word replace function for an electronic typewriter
CA 1301349 C · Owner: Jones, Ronald E. · Inventors: Ingerman, Mark M.; Ervin, Julie M.; Jones, Ronald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure The typewriter is equipped with the capability to check or verify the spelling of words as they are typed and the typewriter may also upon request from the operator provide candidate words from which the operator may select a word to replace a misspelled word. When a candidate word is selected, the typewriter electronic controls check the spelling of the misspelled word and delimit the zone which contains the erroneous characters. Only the characters that are within this bounded zone are erased from the page and the characters which fit within the zone in the new or correctly spelled word are printed, eliminating the need to remove characters which are outside the …
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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
- Granted May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
- 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.