Ribbon transfer for color-on-demand resistive ribbon printing
CA 1262074 C · Owner: International Business Machines Corporation · Inventors: Dove, Derek B.; Aviram, Ari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved technique and apparatus for color-ondemand resistive ribbon printing is provided in which selected colored ink layers are transferred to a resistive printing ribbon from a color-bearing ribbon, prior to resistive ribbon printing. The color ribbon and the resistive printing ribbon both contain ink layers, the only difference being that the ink layer in the printing ribbon is preferrably uncolored. When the ink layers on the two ribbons are brought into contact with one another and heated, the ink layers will become tacky and will adhere to one another. The temperatures of these ink layers are then reduced and the printing ribbon and the color ribbon are separated from one another …
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
- Granted October 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 3, 2006.
- 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.