Font changing apparatus for daisy wheel printer
CA 1136569 A · Owner: International Business Machines Corporation · Inventors: Habich, Adolph B.; Hunt, 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, An under-the-cover automatic font changing apparatus for a daisy wheel printer which utilizes a print element housed in a cartridge during printing. The apparatus is adapted to exchange print elements in the cartridge. Included in the apparatus are an elongated and vertically oriented rack a plurality, of print element holding means located along the rack, drive means for vertically elevating and lowering the rack in a single plane, and means for causing a selection motor drive hub included in the printer to be translated toward and away from the print element for a print element change. During printing, the drive hub is for rotating the print element housed in …
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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 November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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.