Method and apparatus for applying magnetic liquid droplets to a recording surface
CA 1068759 A · Owner: International Business Machines Corporation · Inventors: Fan, George J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure A stream of magnetic ink droplets is directed towards a recording surface and initially passes through a selector which selects the droplets for application to the recording surface to form characters thereon. Each of the selected droplets passes through first and second magnetic deflectors in which each of the selected droplets is deflected in directions orthogonal to each other and orthogonal to the direction in which the droplets are moving toward the recording surface. Each of the selected droplets is subjected to a magnetic field gradient varying with respect to time during the passage of the droplet through one or both of the magnetic fields depending on 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 December 25, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 25, 1996.
- 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.